Все бюллетени/p11/ALT-PU-2026-20873-3
ALT-PU-2026-20873-3

Обновление пакета mimir в ветке p11

Версия3.2.3-alt1
Задание#439641
Опубликовано2026-11-05
Макс. серьёзностьCRITICAL
Серьёзность:

Закрытые проблемы (23)

BDU:2026-15293
HIGH8.2

Уязвимость пакета golang-x-net языка программирования Golang, связанная с неправильной проверкой небезопасной эквивалентности входных данных, позволяющая нарушителю обойти существующие ограничения безопасности и выполнить произвольный код

Опубликовано: 2026-09-24
CVSS 3.xВЫСОКАЯ 8.2
CVSS:3.x/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS 2.0СРЕДНЯЯ 6.6
CVSS:2.0/AV:N/AC:H/Au:S/C:C/I:C/A:N
Ссылки
CVE-2026-39821
CRITICAL9.6

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject "example.com" but permit "xn--example-.com". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name "example.com".

Опубликовано: 2026-05-22Изменено: 2026-09-17
CVSS 3.xКРИТИЧЕСКАЯ 9.6
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Ссылки
CVE-2026-56853
HIGH7.5

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.

Опубликовано: 2026-08-13Изменено: 2026-09-03
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-2026-56857
CRITICAL9.8

On Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location, the operation can create a directory at the junction target even when that target is located outside the root. This only applies to operations where the last path component is a junction (path/to/junction, but not path/junction/target).

Опубликовано: 2026-10-08Изменено: 2026-10-09
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-2026-56860
MEDIUM5.9

Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.

Опубликовано: 2026-08-13Изменено: 2026-09-03
CVSS 3.xСРЕДНЯЯ 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2026-56862
HIGH7.5

Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.

Опубликовано: 2026-08-13Изменено: 2026-10-24
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-2026-56866
HIGH7.5

When http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing after the request headers. If the server rejects the CONNECT request with a non-2xx keep-alive response, Transport returns the connection to the idle pool. Because CONNECT requests do not have a request body, the server may interpret the trailing body bytes as a subsequent pipelined HTTP/1.1 request on the connection, leaving the pooled connection desynchronized and causing the next caller that reuses it to read the response to the injected request. In reverse proxies (including httputil.ReverseProxy) that forward CONNECT requests through a shared Transport, this can lead to cross-user response poisoning.

Опубликовано: 2026-10-08Изменено: 2026-10-09
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Ссылки
CVE-2026-78659
HIGH7.5

When "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending a "Trailer" header that declares a large number of fields, causing the server to allocate a disproportionate amount of memory while bypassing Server.MaxHeaderValueCount and Server.MaxHeaderBytes limits. This exploit is not applicable for HTTP/1 servers, which do not support multiplexing a large number of requests over one TCP connection, and whose Server.MaxHeaderBytes are calculated differently.

Опубликовано: 2026-10-08Изменено: 2026-10-09
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-2026-78660
HIGH7.5

Historically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2 framing. However, this makes it possible for our HTTP/2 implementation to forward responses containing such headers to an HTTP/1 client when acting as a reverse proxy. If the HTTP/1 client also does not behave strictly enough, this can result in response smuggling.

Опубликовано: 2026-10-08Изменено: 2026-10-09
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-2026-78663
CRITICAL9.1

The HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any sent-but-unread portion of the stream), and again when a request handler reads the buffered data. A malicious client can exploit this to bypass the configured connection-level flow control limit (MaxReceiveBufferPerConnection). Total buffered data is still limited by the concurrent stream limit and stream-level flow control.

Опубликовано: 2026-10-08Изменено: 2026-10-09
CVSS 3.xКРИТИЧЕСКАЯ 9.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Ссылки
CVE-2026-78669
HIGH7.5

A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.

Опубликовано: 2026-10-08Изменено: 2026-10-09
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-2026-81938
HIGH7.7

Grafana Mimir's Alertmanager rejects tenant-supplied receiver configurations that reference local files, but the check did not cover two HTTP client settings: http_headers..files and basic_auth.username_file. A tenant permitted to upload an Alertmanager configuration could point these fields at any file readable by the Alertmanager process. When a notification was sent, Alertmanager read the file and put its contents in a header of the outgoing request. By directing the receiver at a server they control, the tenant could read files from the Alertmanager host, such as credentials and configuration. Exploitation requires permission to write the tenant's Alertmanager configuration. Grafana Enterprise Metrics (GEM), which is built on Mimir, is also affected. The issue is fixed in Mimir 3.1.7 and 3.2.2 and in GEM 2.17.20. GEM 2.11 through 2.16 will not receive a fix; users on those versions should upgrade to 2.17.20 or later.

Опубликовано: 2026-11-02Изменено: 2026-11-02
CVSS 3.xВЫСОКАЯ 7.7
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Ссылки
CVE-2026-94439
HIGH7.5

When an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly continues to read and serve requests from the connection. Since a 2xx response to an HTTP/1 CONNECT converts the connection into a tunnel, the server should not treat the connection as continuing to contain HTTP. The impact of this misbehavior is mostly limited to potential request smuggling, where an intermediate proxy considers the data on the connection to be tunneled and the server considers it to be HTTP.

Опубликовано: 2026-10-08Изменено: 2026-10-09
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Ссылки
CVE-2026-94448
MEDIUM6.1

When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new expression. We now ensure that template-literal expression entries correctly reset context variables so all subsequent regular expression literals are accurately recognized and escaped.

Опубликовано: 2026-10-08Изменено: 2026-10-15
CVSS 3.xСРЕДНЯЯ 6.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Ссылки
CVE-2026-97030
MEDIUM6.1

A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now ensure that valid keyword uses are escaped and non-keyword uses are not escaped.

Опубликовано: 2026-10-08Изменено: 2026-10-15
CVSS 3.xСРЕДНЯЯ 6.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Ссылки
CVE-2026-97031
HIGH7.5

Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.

Опубликовано: 2026-10-08Изменено: 2026-10-09
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-2026-97032
HIGH7.5

HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server.

Опубликовано: 2026-10-08Изменено: 2026-10-15
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