Improper Certificate Validation Affecting golang1.27-misc package, versions <0:1.27.3-1.hum1


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-RHEL10-GOLANG127MISC-21344431
  • published21 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

NewCVE-2026-111943  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade RHEL:10 golang1.27-misc to version 0:1.27.3-1.hum1 or higher.
This issue was patched in RHSA-2026:86029.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang1.27-misc package and not the golang1.27-misc package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denylist was added in crypto/x509 to return an error when calling Verify with any of the known intermediate certificates that are no longer considered to be trustworthy.

References

CVSS Base Scores

version 3.1