CVE WatchSep 1, 2026

CVE-2026-5419

A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could all

CVSS

3.7

Low

EPSS

0.4%

p32

KEV

—

Exploit Today

0-100

Published: Jun 1, 2026 · Last modified: Sep 1, 2026 · CWE-208

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-08-232026-09-20

Technical description

A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of information disclosure.

Official references

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