{"id":"UBUNTU-CVE-2026-5091","details":"Catalyst::Plugin::Authentication versions through 0.10024 for Perl  is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password.","modified":"2026-05-27T19:15:37.393608618Z","published":"2026-05-21T22:16:00Z","upstream":["CVE-2026-5091"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-5091"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-5091"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/40281889/"},{"type":"REPORT","url":"https://github.com/perl-catalyst/Catalyst-Plugin-Authentication/commit/b0515f492257438cf07082acf1e10d06e8088a5e"}],"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-2026-5091.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_version":"0.10023-3","binary_name":"libcatalyst-plugin-authentication-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5091.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_version":"0.10023-3","binary_name":"libcatalyst-plugin-authentication-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5091.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-2026-5091.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_name":"libcatalyst-plugin-authentication-perl","binary_version":"0.10023-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5091.json"}},{"package":{"name":"libcatalyst-plugin-authentication-perl","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl?arch=source&distro=questing"},"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-2026-5091.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-2026-5091.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}