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ALSA-2026:60304 — Important: golang security, bug fix, and enhancement update

Affected: AlmaLinux:9: go-toolset, AlmaLinux:9: golang, AlmaLinux:9: golang-bin, AlmaLinux:9: golang-docs, AlmaLinux:9: golang-misc, AlmaLinux:9: golang-race, AlmaLinux:9: golang-src, AlmaLinux:9: golang-tests

The golang packages provide the Go programming language compiler.

Security Fix(es):

* encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818) * net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860) * net/[http:](http:) golang: Go net/[http:](http:) Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853) * html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858) * crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862) * encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)

Bug Fix(es) and Enhancement(s):

* Go 1.26 -- maxThreads limit hit in CGO threads blocked on RAND_bytes in FIPS mode (JIRA:AlmaLinux-215845) * Update Go to version 1.26.7+1 [almalinux-9.8.z] (JIRA:AlmaLinux-246425)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

BELL-CVE-2026-56862

Affected: Alpaquita:23: go, Alpaquita:25: go, Alpaquita:stream: go, BellSoft Hardened Containers:23: go, BellSoft Hardened Containers:25: go, BellSoft Hardened Containers:stream: go

BIT-golang-2026-56862 — Limit handshake messages we are willing to accept post-handshake in crypto/tls

Affected: Bitnami: golang

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.

certfr-2026-avi-1125 — De multiples vulnérabilités ont été découvertes dans les produits VMware. Elles permettent à un attaquant de provoquer…

certfr-2026-avi-1125

Withdrawn: CLEANSTART-2026-AB16903 — Security fixes in fluent-operator-fips 3.10.0-r2

Withdrawn by the publisher.

Affected: CleanStart: fluent-operator-fips

Package fluent-operator-fips version 3.10.0-r2 fixes 10 vulnerabilities: CVE-2026-56860, CVE-2026-56858, CVE-2026-33818, CVE-2026-46600, CVE-2026-56853...

fkie_cve-2026-56862

GHSA-7qch-w8m5-g3h3

msrc_CVE-2026-56862 — Limit handshake messages we are willing to accept post-handshake in crypto/tls

msrc_CVE-2026-56862

OESA-2026-3715 — golang security update

Affected: openEuler:20.03-LTS-SP4: golang

. Security Fix(es):

Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.(CVE-2026-33818)

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.(CVE-2026-56853)

Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.(CVE-2026-56859)

A malicious GOSUMDB was capable of serving arbitrary module content not contained within the transparency log. This attack allows for a coordinating GOPROXY and GOSUMDB to serve a client malicious module content that cannot be detected by evaluating the transparency log. In order to determine if you have been affected: rm -r go.sum go.work.sum vendor/ && go mod tidy(CVE-2026-56864)

A malicious GOPROXY was previously capable of forging up to two sumdb tiles that allow for a requested module to bypass the GOSUMDB check and persist attacker-controlled module content to a local Go module cache. This attack allows for a malicious GOPROXY to ser…

openSUSE-SU-2026:11516-1 — go1.25-1.25.13-1.1 on GA media

go1.25-1.25.13-1.1 on GA media

RHSA-2026:54835 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service html/template: golang: Go html/template: Cross-Site Scripting via pathological input encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages

RLSA-2026:60304 — Important: golang security, bug fix, and enhancement update

Affected: Rocky Linux:9: golang

The golang packages provide the Go programming language compiler.

Security Fix(es):

* encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)

* net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)

* net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)

* html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)

* crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)

* encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)

Bug Fix(es) and Enhancement(s):

* Go 1.26 -- maxThreads limit hit in CGO threads blocked on RAND_bytes in FIPS mode (JIRA:Rocky Linux-215845)

* Update Go to version 1.26.7+1 [rhel-9.8.z] (JIRA:Rocky Linux-246425)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

SUSE-SU-2026:23300-1 — Security update for go1.25

Security update for go1.25

UBUNTU-CVE-2026-56862

Affected: Ubuntu:14.04:LTS: golang-1.10, Ubuntu:16.04:LTS: golang-1.10, Ubuntu:16.04:LTS: golang-1.6, Ubuntu:Pro:16.04:LTS: golang-1.13, Ubuntu:Pro:16.04:LTS: golang-1.18, Ubuntu:18.04:LTS: golang-1.10, Ubuntu:Pro:18.04:LTS: golang-1.13, Ubuntu:Pro:18.04:LTS: golang-1.16, Ubuntu:Pro:18.04:LTS: golang-1.18, Ubuntu:18.04:LTS: golang-1.8 and 23 more

WID-SEC-W-2026-2850 — Golang Go: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Golang Go ausnutzen, um einen Denial of Service zu verursachen, ein Cross Site Scripting durchzuführen, Sicherheitsmaßnahmen zu umgehen oder Daten zu manipulieren.