CVE WatchJul 15, 2026

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 usin

CVSS

8.2

High

EPSS

0.7%

p50

KEV

—

Exploit Today

0-100

Published: May 26, 2026 · Last modified: Jul 15, 2026 · CWE-126

EPSS · 30d

0.7%EPSS · 30 days0.7%

2026-06-302026-07-16

Technical 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.

Official references

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