{"id":"UBUNTU-CVE-2026-74846","details":"Catalyst::Plugin::Authentication versions before 0.10029 for Perl allow timing attacks on stored passwords via eq comparisons in the legacy password verifier. CVE-2026-5091 was fixed in the realm-based verifier. The legacy verifier, used by the deprecated login method, compares clear-text passwords, crypt hashes and base64 digests with eq, so the comparison time depends on how many leading bytes match. A remote attacker can use response-time differences to guess the stored password or hash.","modified":"2026-11-04T03:30:35.972195946Z","published":"2026-11-03T00:00:00Z","upstream":["CVE-2026-74846"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-74846"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-74846"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/44854507/"},{"type":"REPORT","url":"https://github.com/perl-catalyst/Catalyst-Plugin-Authentication/commit/ba4435f1fa6b641e6c8793c88b5433afa83ceafa.patch"},{"type":"REPORT","url":"https://metacpan.org/release/ETHER/Catalyst-Plugin-Authentication-0.10029/changes"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-5091"}],"affected":[{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10023-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.10023-2","binary_name":"libcatalyst-plugin-authentication-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74846.json"}},{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10023-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libcatalyst-plugin-authentication-perl","binary_version":"0.10023-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74846.json"}},{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10023-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libcatalyst-plugin-authentication-perl","binary_version":"0.10023-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74846.json"}},{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10023-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libcatalyst-plugin-authentication-perl","binary_version":"0.10023-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74846.json"}},{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10023-4"],"ecosystem_specific":{"binaries":[{"binary_version":"0.10023-4","binary_name":"libcatalyst-plugin-authentication-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74846.json"}},{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10024-1","0.10026-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libcatalyst-plugin-authentication-perl","binary_version":"0.10026-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74846.json"}},{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10024-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libcatalyst-plugin-authentication-perl","binary_version":"0.10024-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-74846.json"}}],"schema_version":"1.9.2","severity":[{"type":"Ubuntu","score":"medium"}]}