CVE-2026-42505 Affecting go-toolset:rhel8/golang-bin package, versions <0:1.26.5-1.module_el8.10.0+4223+bd807c2e


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-ALMALINUX8-GOTOOLSET-21743981
  • published27 Oct 2026
  • disclosed9 Jul 2026

Introduced: 9 Jul 2026

CVE-2026-42505  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 go-toolset:rhel8/golang-bin to version 0:1.26.5-1.module_el8.10.0+4223+bd807c2e or higher.
This issue was patched in ALSA-2026:38995.

NVD Description

Note: Versions mentioned in the description apply only to the upstream go-toolset:rhel8/golang-bin package and not the go-toolset:rhel8/golang-bin package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 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