CVE-2026-5260

Description

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.

CVSS Vector

References

• https://access.redhat.com/errata/RHSA-2026:20611
• https://access.redhat.com/security/cve/CVE-2026-5260
• https://bugzilla.redhat.com/show_bug.cgi?id=2467450