CVE-2026-5260

published 2026-05-26

CVE-2026-5260: 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…

high 8.2 CVSS 3.1

AV N AC L PR N UI N S U C L I N A H

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
gnu	gnutls	—	—
ubuntu	gnutls28	—	—

CWE-1284