Buffer Over-read The advisory has been revoked - it doesn't affect any version of package rhcos (opens in a new tab)

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Snyk IDSNYK-RHEL9-RHCOS-16893893
published27 May 2026
disclosed29 Apr 2026

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Introduced: 29 Apr 2026

CVE-2026-5260 (opens in a new tab) CWE-126 (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rhcos package and not the rhcos package as distributed by RHEL.

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.