CVE-2026-42505 Affecting golang-src package, versions <0:1.26.5-1.el10_2.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-ALMALINUX10-GOLANGSRC-18609956
  • published11 Aug 2026
  • disclosed10 Sept 2026

Introduced: 11 Aug 2026

CVE-2026-42505  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 golang-src to version 0:1.26.5-1.el10_2.alma.1 or higher.
This issue was patched in ALSA-2026:37436.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-src package and not the golang-src package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.

CVSS Base Scores

version 3.1