{"id":"UBUNTU-CVE-2026-13082","details":"GD::SecurityImage versions through 1.75 for Perl use rand to generate secrets. The random method creates the challenge text used for the CAPTCHA by sampling characters from an array using Perl's built-in rand function, and generates a (by default) six-character string. The built-in rand function is unsuitable for security applications because it is predictable and reversible.","modified":"2026-07-29T10:18:33.174530600Z","published":"2026-07-17T13:17:00Z","upstream":["CVE-2026-13082"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-13082"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-13082"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/41903267/"},{"type":"REPORT","url":"https://security.metacpan.org/patches/G/GD-SecurityImage/1.75/CVE-2026-13082-r1.patch"}],"affected":[{"package":{"name":"libgd-securityimage-perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.73-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libgd-securityimage-perl","binary_version":"1.73-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"}},{"package":{"name":"libgd-securityimage-perl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.73-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.73-2","binary_name":"libgd-securityimage-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"}},{"package":{"name":"libgd-securityimage-perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.75-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libgd-securityimage-perl","binary_version":"1.75-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"}},{"package":{"name":"libgd-securityimage-perl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.75-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libgd-securityimage-perl","binary_version":"1.75-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"}},{"package":{"name":"libgd-securityimage-perl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.75-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libgd-securityimage-perl","binary_version":"1.75-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.json"}},{"package":{"name":"libgd-securityimage-perl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libgd-securityimage-perl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.75-3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.75-3","binary_name":"libgd-securityimage-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-13082.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:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}