CVE-2026-54411 (GCVE-0-2026-54411)
Vulnerability from cvelistv5
Published
2026-06-14 17:21
Modified
2026-08-10 11:43
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:N/V:D
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-208 - Observable Timing Discrepancy
Summary
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.
References
Impacted products
Vendor Product Version
Linux-PAM Linux-PAM Version: 0   ≤ 1.7.2
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