{"id":"DEBIAN-CVE-2026-54411","details":"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.","modified":"2026-09-29T13:03:56.196115795Z","published":"2026-06-14T18:17:20.587Z","upstream":["CVE-2026-54411"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-54411"}],"affected":[{"package":{"name":"pam","ecosystem":"Debian:12","purl":"pkg:deb/debian/pam?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.2-6","1.5.2-6+deb12u1","1.5.2-6+deb12u2","1.5.2-7","1.5.2-8","1.5.2-9","1.5.2-9.1","1.5.3-1","1.5.3-2","1.5.3-3","1.5.3-4","1.5.3-5","1.5.3-6","1.5.3-6+hurd.1","1.5.3-7","1.7.0-1","1.7.0-2","1.7.0-2+hurd.1","1.7.0-3","1.7.0-4","1.7.0-5","1.7.0-6","1.7.0-7","1.7.0-8"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54411.json"}},{"package":{"name":"pam","ecosystem":"Debian:13","purl":"pkg:deb/debian/pam?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.0-5","1.7.0-6","1.7.0-7","1.7.0-8"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54411.json"}},{"package":{"name":"pam","ecosystem":"Debian:14","purl":"pkg:deb/debian/pam?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.0-5","1.7.0-6","1.7.0-7","1.7.0-8"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54411.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:D/RE:X/U:X"}]}