CVE-2026-54411

MediumCVSS 5.9/10Last modified Aug 10, 2026

Description

Linux-PAM through 1.7.2 contains an observable timing discrepancy (CWE-208) in the pam_userdb module's plaintext-password comparison path in modules/pam_userdb/pam_userdb.c that allows a local or network-adjacent attacker able to repeatedly drive authentication through a calling service to recover the plaintext password of a target account by measuring response-timing differences.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-208

Affected software

No affected versions have been published.

Timeline

Published: Jun 14, 2026
Last modified: Aug 10, 2026
NVD status: Deferred

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