All errata/c10f2/ALT-PU-2026-6645-2
ALT-PU-2026-6645-2

Package update openbao in branch c10f2

Version2.5.3-alt1
Task#416023
Published2026-04-27
Max severityHIGH
Severity:

Closed issues (13)

BDU:2026-05648
HIGH8.1

Уязвимость платформ для архивирования корпоративной информации HashiCorp Vault Community Edition и Vault Enterprise, связанная с обходом аутентификации посредством использования альтернативного пути или канала, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2026-04-21
CVSS 3.xHIGH 8.1
CVSS:3.x/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0HIGH 8.5
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:C/A:C
References
CVE-2026-3605
HIGH8.1

An authenticated user with access to a kvv2 path through a policy containing a glob may be able to delete secrets they were not authorized to read or write, resulting in denial-of-service. This vulnerability did not allow a malicious user to delete secrets across namespaces, nor read any secret data. Fxed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16.

Published: 2026-04-17Modified: 2026-04-25
CVSS 3.xHIGH 8.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
References
CVE-2026-39388
LOW2.0

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.3, OpenBao's Certificate authentication method, when a token renewal is requested and `disable_binding=true` is set, attempts to verify the current request's presented mTLS certificate matches the original. Token renewals for other authentication methods do not require any supplied login information. Due to incorrect matching, the certificate authentication method would allow renewal of tokens for which the attacker had a sibling certificate+key signed by the same CA, but which did not necessarily match the original role or the originally supplied certificate. This implies an attacker could still authenticate to OpenBao in a similar scope, however, token renewal implies that an attacker may be able to extend the lifetime of dynamic leases held by the original token. This attack requires knowledge of either the original token or its accessor. This vulnerability is original from HashiCorp Vault. This is addressed in v2.5.3. As a workaround, ensure privileged roles are tightly scoped to single certificates.

Published: 2026-04-21Modified: 2026-04-24
CVSS 3.xLOW 3.1
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
CVSS 4.0LOW 2.0
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/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:X
References
CVE-2026-39396
MEDIUM6.5

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.3, `ExtractPluginFromImage()` in OpenBao's OCI plugin downloader extracts a plugin binary from a container image by streaming decompressed tar data via `io.Copy` with no upper bound on the number of bytes written. An attacker who controls or compromises the OCI registry referenced in the victim's configuration can serve a crafted image containing a decompression bomb that decompresses to an arbitrarily large file. The SHA256 integrity check occurs after the full file is written to disk, meaning the hash mismatch is detected only after the damage (disk exhaustion) has already occurred. This allow the attacker to replace **legit plugin image** with no need to change its signature. Version 2.5.3 contains a patch.

Published: 2026-04-21Modified: 2026-05-01
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
CVE-2026-39946
MEDIUM4.6

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.3, when OpenBao revoked privileges on a role in the PostgreSQL database secrets engine, OpenBao failed to use proper database quoting on schema names provided by PostgreSQL. This could lead to role revocation failures, or more rarely, SQL injection as the management user. This vulnerability was original from HashiCorp Vault. The vulnerability is addressed in v2.5.3. As a workaround, audit table schemas and ensure database users cannot create new schemas and grant privileges on them.

Published: 2026-04-21Modified: 2026-04-24
CVSS 3.xMEDIUM 4.9
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVSS 4.0MEDIUM 4.6
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/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
References
CVE-2026-40264
LOW2.0

OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant separation. Prior to version 2.5.3, a tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant. This is addressed in v2.5.3.

Published: 2026-04-21Modified: 2026-04-24
CVSS 3.xLOW 2.7
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
CVSS 4.0LOW 2.0
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/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
References
CVE-2026-5807
HIGH7.5

Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.

Published: 2026-04-17Modified: 2026-04-27
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
GHSA-6vgr-cp5c-ffx3
MEDIUM4.6

OpenBao's SQL Injection in PostgreSQL database secrets engine

Published: 2026-04-21Modified: 2026-04-27
CVSS 3.xMEDIUM 4.6
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVSS 4.0MEDIUM 4.6
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
References
GHSA-7ccv-rp6m-rffr
LOW2.0

OpenBao's Certificate Authentication Allows Token Renewal With Different Certificate

Published: 2026-04-21Modified: 2026-04-27
CVSS 3.xLOW 2.0
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
CVSS 4.0LOW 2.0
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
References
GHSA-p49j-v9wc-wg57
LOW2.0

OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation

Published: 2026-04-21
CVSS 4.0LOW 2.0
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
References
GHSA-r65v-xgwc-g56j
LOW3.1

OpenBao: Decompression Bomb via Unbounded Copy in OCI Plugin Extraction (DoS)

Published: 2026-04-21
CVSS 3.xLOW 3.1
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
References