CVE-2026-54411: Linux-PAM pam_userdb Observable Timing Discrepancy in Plaintext Password Comparison
Affected: Linux-PAM · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 25% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Linux-PAM · Linux-PAMup to and including 1.7.2
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-54411 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.