CVE-2026-71199

Public on 2026-11-12

Modified on 2026-11-12

Description

In MIT krb5 release 1.14 and later (since authentication indicator support was added), an authenticated attacker can bypass authentication indicator requirements using an unkeyed checksum in the CAMMAC authdata container.

Severity

Important

See what this means

CVSS v3 Base Score

8.1

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Core	krb5	Pending Fix
Amazon Linux 2023	krb5	Pending Fix
Amazon Linux 2027 Preview	krb5	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	8.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-71199 Mitre: CVE-2026-71199