Все бюллетени/p10/ALT-PU-2026-8920-2
ALT-PU-2026-8920-2

Обновление пакета keycloak в ветке p10

Версия26.6.3-alt1
Задание#420746
Опубликовано2026-06-12
Макс. серьёзностьCRITICAL
Серьёзность:

Закрытые проблемы (63)

BDU:2026-07379
HIGH7.5

Уязвимость компонента SAML Endpoint программного средства для управления идентификацией и доступом Keycloak, позволяющая нарушителю вызвать отказ в обслуживании

Опубликовано: 2026-05-26
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0ВЫСОКАЯ 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
Ссылки
BDU:2026-07782
HIGH8.1

Уязвимость валидатора URL-адресов программного средства для управления идентификацией и доступом Keycloak, позволяющая нарушителю раскрыть защищаемую информацию

Опубликовано: 2026-06-03
CVSS 3.xВЫСОКАЯ 8.1
CVSS:3.x/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS 2.0КРИТИЧЕСКАЯ 9.4
CVSS:2.0/AV:N/AC:L/Au:N/C:C/I:C/A:N
Ссылки
CVE-2026-0636
MEDIUM5.5

Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcprov on all (prov modules). This vulnerability is associated with program files LDAPStoreHelper. This issue affects BC-JAVA: from 1.74 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

Опубликовано: 2026-04-15Изменено: 2026-05-18
CVSS 4.0СРЕДНЯЯ 5.5
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:X/RE:M/U:Amber
Ссылки
CVE-2026-0707
MEDIUM5.3

A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters (such as tabs) as separators and tolerates case variations that deviate from RFC 6750 specifications.

Опубликовано: 2026-01-08Изменено: 2026-06-08
CVSS 3.xСРЕДНЯЯ 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Ссылки
CVE-2026-33870
HIGH7.5

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue.

Опубликовано: 2026-03-27Изменено: 2026-03-30
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Ссылки
CVE-2026-33871
HIGH8.7

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, a remote user can trigger a Denial of Service (DoS) against a Netty HTTP/2 server by sending a flood of `CONTINUATION` frames. The server's lack of a limit on the number of `CONTINUATION` frames, combined with a bypass of existing size-based mitigations using zero-byte frames, allows an user to cause excessive CPU consumption with minimal bandwidth, rendering the server unresponsive. Versions 4.1.132.Final and 4.2.10.Final fix the issue.

Опубликовано: 2026-03-27Изменено: 2026-03-30
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0ВЫСОКАЯ 8.7
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Ссылки
CVE-2026-3505
HIGH8.7

Allocation of resources without limits or throttling, Uncontrolled Resource Consumption vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpg on all (pg modules). This vulnerability is associated with program files AEADEncDataPacket.Java, BcAEADUtil.Java, JceAEADUtil.Java, OperatorHelper.Java. This issue affects BC-JAVA: from 1.74 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

Опубликовано: 2026-04-15Изменено: 2026-05-18
CVSS 4.0ВЫСОКАЯ 8.7
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Ссылки
CVE-2026-37977
MEDIUM5.3

A flaw was found in Keycloak. A remote attacker can exploit a Cross-Origin Resource Sharing (CORS) header injection vulnerability in Keycloak's User-Managed Access (UMA) token endpoint. This flaw occurs because the `azp` claim from a client-supplied JSON Web Token (JWT) is used to set the `Access-Control-Allow-Origin` header before the JWT signature is validated. When a specially crafted JWT with an attacker-controlled `azp` value is processed, this value is reflected as the CORS origin, even if the grant is later rejected. This can lead to the exposure of low-sensitivity information from authorization server error responses, weakening origin isolation, but only when a target client is misconfigured with `webOrigins: ["*"]`.

Опубликовано: 2026-04-06Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Ссылки
CVE-2026-37978
MEDIUM4.9

A flaw was found in Keycloak. A low-privilege administrator with the 'view-clients' role can exploit this by invoking the 'evaluate-scopes' Admin API endpoints with an arbitrary user ID (userId) parameter. This vulnerability allows for cross-role personally identifiable information (PII) leakage, enabling unauthorized visibility into user identities and authorizations across the realm. Exploitation is possible remotely via network access to the Admin API.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xСРЕДНЯЯ 4.9
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Ссылки
CVE-2026-37979
MEDIUM6.5

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect (OIDC) token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other resource servers, compromising the confidentiality of lightweight access tokens. This issue can be exploited remotely by any confidential client in the realm with valid credentials.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xСРЕДНЯЯ 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Ссылки
CVE-2026-37980
MEDIUM4.8

A flaw was found in Keycloak, specifically in the organization selection login page. A remote attacker with `manage-realm` or `manage-organizations` administrative privileges can exploit a Stored Cross-Site Scripting (XSS) vulnerability. This flaw occurs because the `organization.alias` is placed into an inline JavaScript `onclick` handler, allowing a crafted JavaScript payload to execute in a user's browser when they view the login page. Successful exploitation enables arbitrary JavaScript execution, potentially leading to session theft, unauthorized account actions, or further attacks against users of the affected realm.

Опубликовано: 2026-04-14Изменено: 2026-06-02
CVSS 3.xСРЕДНЯЯ 4.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Ссылки
CVE-2026-37981
MEDIUM4.3

A flaw was found in Keycloak. A broken access control vulnerability in the Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access (UMA) resource, to enumerate and harvest personally identifiable information (PII) for all realm users. By sending crafted requests with arbitrary usernames or email values, the endpoint returns full profile objects for unrelated users. This leads to broad profile-level information disclosure.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xСРЕДНЯЯ 4.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Ссылки
CVE-2026-37982
MEDIUM6.8

A flaw was found in Keycloak. This authentication vulnerability allows a remote attacker to replay `ExecuteActionsActionToken` tokens within Keycloak's WebAuthn (Web Authentication) flow. By intercepting an execute-actions email link, an attacker can register their own authenticator to a victim's account. This leads to unauthorized enrollment of a hardware-backed credential, enabling persistent account takeover.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xСРЕДНЯЯ 6.8
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Ссылки
CVE-2026-42581
CRITICAL9.8

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absent for HTTP/1.0. An attacker that sends an HTTP/1.0 request with both headers causes Netty to decode the body as chunked while leaving Content-Length intact in the forwarded HttpMessage. Any downstream proxy or handler that trusts Content-Length over Transfer-Encoding will disagree on message boundaries, enabling request smuggling. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

Опубликовано: 2026-05-13Изменено: 2026-05-18
CVSS 3.xКРИТИЧЕСКАЯ 9.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ссылки
CVE-2026-4366
MEDIUM5.8

A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or restricted resources. As a result, sensitive internal services such as cloud metadata endpoints could be accessed. This issue may lead to information disclosure and enable attackers to map internal network infrastructure.

Опубликовано: 2026-03-18Изменено: 2026-06-09
CVSS 3.xСРЕДНЯЯ 5.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Ссылки
CVE-2026-4628
MEDIUM4.3

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control checks on PUT operations to the resource_set endpoint. This issue enables unauthorized modification of protected resources, impacting data integrity.

Опубликовано: 2026-03-23Изменено: 2026-04-01
CVSS 3.xСРЕДНЯЯ 4.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Ссылки
CVE-2026-4630
MEDIUM6.8

A flaw was found in Keycloak. An authenticated client could exploit an Insecure Direct Object Reference (IDOR) vulnerability in the Authorization Services Protection API endpoint. By knowing or obtaining a resource's unique identifier (UUID) belonging to another Resource Server within the same realm, the client could bypass authorization checks. This allows the client to perform unauthorized GET, PUT, and DELETE operations on resources, leading to information disclosure and potential unauthorized modification or deletion of data.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xСРЕДНЯЯ 6.8
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Ссылки
CVE-2026-4633
LOW3.7

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration.

Опубликовано: 2026-03-23Изменено: 2026-04-01
CVSS 3.xНИЗКАЯ 3.7
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Ссылки
CVE-2026-4800
CRITICAL9.8

Impact: The fix for CVE-2021-23337 (https://github.com/advisories/GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink. When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time. Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function(). Patches: Users should upgrade to version 4.18.0. Workarounds: Do not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.

Опубликовано: 2026-03-31Изменено: 2026-05-01
CVSS 3.xКРИТИЧЕСКАЯ 9.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ссылки
CVE-2026-4874
LOW3.1

A flaw was found in Keycloak. An authenticated attacker can perform Server-Side Request Forgery (SSRF) by manipulating the `client_session_host` parameter during refresh token requests. This occurs when a Keycloak client is configured to use the `backchannel.logout.url` with the `application.session.host` placeholder. Successful exploitation allows the attacker to make HTTP requests from the Keycloak server’s network context, potentially probing internal networks or internal APIs, leading to information disclosure.

Опубликовано: 2026-03-26Изменено: 2026-06-10
CVSS 3.xНИЗКАЯ 3.1
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Ссылки
CVE-2026-5588
MEDIUM6.3

Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix on all (pkix modules), Legion of the Bouncy Castle Inc. BCPKIX-FIPS bcpkix on All (pkix modules), Legion of the Bouncy Castle Inc. BCPIX-LTS bcpkix on All (pkix modules). This vulnerability is associated with program files JcaContentVerifierProviderBuilder.Java, JcaContentVerfierProviderBuilder.Java. This issue affects BC-JAVA: from 1.67 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84; BCPKIX-FIPS: from 2.0.6 before 2.0.11, from 2.1.7 before 2.1.11; BCPIX-LTS: from 2.73.7 before 2.73.11.

Опубликовано: 2026-04-15Изменено: 2026-05-18
CVSS 4.0СРЕДНЯЯ 6.3
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber
Ссылки
CVE-2026-5598
HIGH8.9

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.80.1, from 1.82 before 1.84.

Опубликовано: 2026-04-15Изменено: 2026-05-18
CVSS 4.0ВЫСОКАЯ 8.9
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:X/V:X/RE:X/U:Red
Ссылки
CVE-2026-7307
HIGH7.5

A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes unavailable.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2026-7500
MEDIUM5.4

When Keycloak is started with `--features-disabled=account,account-api`, the Account REST API is only partially disabled. Five endpoints under the versioned path `/account/v1alpha1` remain fully functional — including both read and write operations — because they lack the `checkAccountApiEnabled()` gate that correctly blocks four other endpoints in the same REST service class. The user needs to have permissions to use the API.

Опубликовано: 2026-04-30Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 5.4
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Ссылки
CVE-2026-7504
HIGH8.1

A flaw was found in Keycloak's URL validation logic during redirect operations. By crafting a malicious request, an attacker could bypass validation to redirect users to unauthorized URLs, potentially leading to the exposure of sensitive information within the domain or facilitating further attacks. This vulnerability specifically affects Keycloak clients configured with a wildcard (*) in the "Valid Redirect URIs" field and requires user interaction to be successfully exploited. The issue stems from a discrepancy in how Keycloak and the underlying Java URI implementation handle the user-info component of a URL. If a malicious redirect URL is constructed using multiple @ characters in the user-info section, Java's URI parser fails to extract the user-info, leaving only the raw authority field. Consequently, Keycloak's validation check fails to detect the malformed user-info, falls back to a wildcard comparison, and incorrectly permits the malicious redirect.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xВЫСОКАЯ 8.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Ссылки
CVE-2026-7507
HIGH7.5

A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted link. By leveraging the /login-actions/restart endpoint—which processes session handles without adequate CSRF protection or cookie ownership validation—an attacker can reset the authentication flow state. This causes Single Sign-On (SSO) to authenticate the victim transparently upon clicking the link, allowing the attacker to hijack the required-action form without needing the victim's credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Ссылки
CVE-2026-7571
HIGH7.1

A flaw was found in Keycloak. A low-privilege user, with knowledge of user credentials and client ID, can bypass a security control intended to disable the implicit flow in OpenID Connect (OIDC) clients. By manipulating client data during a session restart, an attacker can obtain an access token that should not be available. This vulnerability can also lead to the exposure of these access tokens in server logs, proxy logs, and HTTP Referrer headers, resulting in sensitive information disclosure.

Опубликовано: 2026-05-19Изменено: 2026-06-03
CVSS 3.xВЫСОКАЯ 7.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Ссылки
CVE-2026-8830
MEDIUM4.3

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction() fails to validate that the newly created credential's parameters, such as public key algorithms, match the realm's configured WebAuthn policies. This could lead to the creation of credentials that do not adhere to administrative security requirements, potentially weakening the overall security posture of the system by allowing non-compliant authentication methods.

Опубликовано: 2026-05-19Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 4.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Ссылки
CVE-2026-8922
MEDIUM5.4

A flaw was found in Keycloak. When both realm-level and client-level `notBefore` revocation policies are configured, Keycloak's OpenID Connect (OIDC) Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain active, potentially leading to unauthorized access or continued session validity. This could impact the security of systems utilizing Keycloak for identity and access management.

Опубликовано: 2026-05-19Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 5.4
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Ссылки
CVE-2026-9087
HIGH8.1

A flaw was found in Keycloak. The cross-session verification proof is keyed only by (local userId, idpAlias) and is not bound to the upstream identity that was actually verified, so a second upstream account on the same IdP can consume it and get linked to the victim's local account.

Опубликовано: 2026-05-20Изменено: 2026-06-10
CVSS 3.xВЫСОКАЯ 8.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Ссылки
CVE-2026-9088
LOW2.7

A flaw was found in org.keycloak.services. An administrator with delegated access to read group memberships and users can bypass user profile permissions by accessing the group members endpoint. This allows the administrator to view user attributes that are explicitly configured to be denied, leading to information disclosure.

Опубликовано: 2026-06-05Изменено: 2026-06-10
CVSS 3.xНИЗКАЯ 2.7
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Ссылки
CVE-2026-9704
HIGH8.8

A flaw was found in Keycloak. An authenticated user with low privileges can exploit this vulnerability by sending an oversized subject_token JSON Web Token (JWT) to the TokenEndpoint. When the token exceeds a 4000-character limit, it is silently dropped, causing the system to fall back to client credentials. This allows the user to gain the permissions of the client's service account, leading to privilege escalation.

Опубликовано: 2026-05-27Изменено: 2026-06-10
CVSS 3.xВЫСОКАЯ 8.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Ссылки
CVE-2026-9791
MEDIUM4.3

A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect (OIDC) token with the 'organization' scope. This allows organization metadata to be disclosed in tokens, even after an administrator has explicitly disabled the Organizations feature, potentially leading to incorrect authorization decisions by resource servers.

Опубликовано: 2026-05-28Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 4.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Ссылки
CVE-2026-9792
MEDIUM6.5

A flaw was found in Keycloak's Client Policies, specifically within the `org.keycloak.protocol.oidc` component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the `reject-ropc-grant` executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure.

Опубликовано: 2026-05-28Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Ссылки
CVE-2026-9794
MEDIUM5.3

A flaw was found in Keycloak. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted SOAP requests to the SAML ECP (Security Assertion Markup Language Enhanced Client or Proxy) endpoint with varying client IDs. By observing distinct faultstrings in the responses, the attacker can determine the client's protocol type, leading to information disclosure.

Опубликовано: 2026-05-28Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Ссылки
CVE-2026-9801
MEDIUM4.9

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol (LDAP) server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password policy response during a password authentication request, the attacker can trigger an OutOfMemoryError. This causes the Keycloak Java Virtual Machine (JVM) to terminate, leading to a denial of service (DoS) for all realms on the affected node.

Опубликовано: 2026-05-28Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 4.9
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2026-9802
MEDIUM6.8

A flaw was found in Keycloak. When revokeRefreshToken=true is enabled and persistent session storage is in use, a server restart can reset internal timing mechanisms. This allows a remote attacker, who has previously captured a user's refresh token, to replay that token even after it has been revoked. Successful exploitation grants the attacker unauthorized access to the victim's account, potentially leading to information disclosure or privilege escalation.

Опубликовано: 2026-05-28Изменено: 2026-06-10
CVSS 3.xСРЕДНЯЯ 6.8
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Ссылки
GHSA-4pgc-gfrr-wcmg
MEDIUM4.3

Keycloak has Improper Access Control that allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false

Опубликовано: 2026-03-23Изменено: 2026-04-13
CVSS 3.xСРЕДНЯЯ 4.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Ссылки
GHSA-4x37-hw65-52w8
MEDIUM6.5

Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass

Опубликовано: 2026-05-19Изменено: 2026-06-04
CVSS 3.xСРЕДНЯЯ 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Ссылки
GHSA-5v8v-xvjv-57x7
LOW3.7

Keycloak vulnerable to information disclosure via CORS header injection due to unvalidated JWT azp claim

Опубликовано: 2026-04-06Изменено: 2026-04-08
CVSS 3.xНИЗКАЯ 3.7
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Ссылки
GHSA-83c4-ffjp-mxp9
MEDIUM5.4

Keycloak: Revoked Tokens Can Remain Active When Both Realm-Level and Client-Level `notBefore` Revocation Policies are Configured

Опубликовано: 2026-05-19Изменено: 2026-06-11
CVSS 3.xСРЕДНЯЯ 5.4
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Ссылки
GHSA-c3fc-8qff-9hwx
MEDIUM5.5

Bouncy Castle has an LDAP injection

Опубликовано: 2026-04-17Изменено: 2026-04-18
CVSS 4.0СРЕДНЯЯ 5.5
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/RE:M/U:Amber
Ссылки
GHSA-cj8j-37rh-8475
HIGH8.7

Bouncy Castle Uncontrolled Resource Consumption vulnerability

Опубликовано: 2026-04-17Изменено: 2026-04-18
CVSS 4.0ВЫСОКАЯ 8.7
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Ссылки
GHSA-g8vr-x4qh-25qg
MEDIUM4.3

Keycloak: Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation

Опубликовано: 2026-05-19Изменено: 2026-06-11
CVSS 3.xСРЕДНЯЯ 4.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Ссылки
GHSA-gv94-wp4h-vv8p
MEDIUM5.3

Keycloak has Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

Опубликовано: 2026-01-08Изменено: 2026-06-09
CVSS 3.xСРЕДНЯЯ 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Ссылки
GHSA-hf67-5vvq-fm3r
HIGH7.5

Keycloak: Session fixation in OIDC login flow that can lead to account takeover

Опубликовано: 2026-05-19Изменено: 2026-06-04
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Ссылки
GHSA-hm32-hfmw-rhvg
MEDIUM5.4

Keycloak has a Forced Browsing issue

Опубликовано: 2026-04-30Изменено: 2026-06-11
CVSS 3.xСРЕДНЯЯ 5.4
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Ссылки
GHSA-hq3p-w4xv-x7vp
HIGH7.1

Keycloak: Access token disclosure and implicit flow bypass via forged client data

Опубликовано: 2026-05-19Изменено: 2026-06-04
CVSS 3.xВЫСОКАЯ 7.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Ссылки
GHSA-m32f-8vh9-2hh3
MEDIUM6.9

Keycloak: Arbitrary code execution via Stored Cross-Site Scripting (XSS) in organization selection login page

Опубликовано: 2026-04-14Изменено: 2026-04-16
CVSS 3.x
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
Ссылки
GHSA-m6qj-3mpp-57v8
MEDIUM6.4

Keycloak: Insufficient verification proof scoping enables identity provider account linking attack and account compromise

Опубликовано: 2026-05-20Изменено: 2026-06-11
CVSS 3.xСРЕДНЯЯ 6.4
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Ссылки
GHSA-p5mv-gj8j-xqgf
HIGH7.5

Keycloak: Denial of Service via specially crafted SAML input

Опубликовано: 2026-05-19Изменено: 2026-06-04
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
GHSA-p93r-85wp-75v3
HIGH8.9

Bouncy Castle Has Covert Timing Channel Vulnerability

Опубликовано: 2026-04-17Изменено: 2026-04-25
CVSS 4.0ВЫСОКАЯ 8.9
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/S:P/AU:Y/U:Red
Ссылки
GHSA-pwqr-wmgm-9rr8
HIGH7.5

Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

Опубликовано: 2026-03-26Изменено: 2026-03-27
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Ссылки
GHSA-r5fr-rjxr-66jc
HIGH8.1

lodash vulnerable to Code Injection via `_.template` imports key names

Опубликовано: 2026-04-01
CVSS 3.xВЫСОКАЯ 8.1
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ссылки
GHSA-rhgq-f8x5-j2jc
LOW3.7

Keycloak's identity-first login flow exposes user information

Опубликовано: 2026-03-23Изменено: 2026-04-13
CVSS 3.xНИЗКАЯ 3.7
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Ссылки
GHSA-rp95-xpg9-c2cq
HIGH8.1

Keycloak: Open redirect when using wildcard valid redirect URIs in Keycloak

Опубликовано: 2026-05-19Изменено: 2026-06-04
CVSS 3.xВЫСОКАЯ 8.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Ссылки
GHSA-rrv7-3mqf-hxfr
MEDIUM4.9

Keycloak: Information Disclosure via evaluate-scopes Admin API

Опубликовано: 2026-05-19Изменено: 2026-06-04
CVSS 3.xСРЕДНЯЯ 4.9
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Ссылки
GHSA-w4p5-rfh6-cwrv
MEDIUM6.8

Keycloak: Unauthorized account takeover via WebAuthn token replay

Опубликовано: 2026-05-19Изменено: 2026-06-04
CVSS 3.xСРЕДНЯЯ 6.8
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Ссылки
GHSA-wg6q-6289-32hp
MEDIUM6.3

Bouncy Castle Crypto Package For Java: Use of a Broken or Risky Cryptographic Algorithm vulnerability in bcpkix modules

Опубликовано: 2026-04-15Изменено: 2026-04-16
CVSS 4.0СРЕДНЯЯ 6.3
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/U:Green
Ссылки