CVE-2026-42507 Affecting go-toolset:rhel8/golang package, versions <0:1.26.5-1.module_el8.10.0+4223+bd807c2e


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.37% (31st percentile)

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  • Snyk IDSNYK-ALMALINUX8-GOTOOLSET-21743988
  • published27 Oct 2026
  • disclosed25 Jun 2026

Introduced: 25 Jun 2026

CVE-2026-42507  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 go-toolset:rhel8/golang 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 package and not the go-toolset:rhel8/golang package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged.

CVSS Base Scores

version 3.1