CVE-2026-67693

Public on 2026-10-08

Modified on 2026-10-10

Description

An issue in gnutls v.3.8.13 allows an attacker to obtain sensitive information via failing to reject end-entity X.509 certificates that contain a contradictory combination of Key Usage (KU) and Extended Key Usage (EKU)

Severity

Important

See what this means

CVSS v3 Base Score

7.4

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	gnutls	Pending Fix
Amazon Linux 2023	gnutls	Pending Fix
Amazon Linux 2027 Preview	gnutls	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	7.4	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-67693 Mitre: CVE-2026-67693