{"id":"UBUNTU-CVE-2026-6656","details":"Crypt::Password versions through 0.28 for Perl are susceptible to timing attacks. The check_password method uses the built-in eq operator. This allows discrepancies in timing to be used to guess the underlying hash.","modified":"2026-07-29T10:19:01.496587569Z","published":"2026-07-20T07:16:00Z","upstream":["CVE-2026-6656"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-6656"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-6656"},{"type":"REPORT","url":"https://rt.cpan.org/Ticket/Display.html?id=180162"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/41975673/"}],"affected":[{"package":{"name":"libcrypt-password-perl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libcrypt-password-perl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.28-1","0.28-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libcrypt-password-perl","binary_version":"0.28-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6656.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}