{"schemaVersion":3,"id":"CVE-2026-105326","aliases":["RHSA-2026:77638","UBUNTU-CVE-2026-105326","DEBIAN-CVE-2026-105326"],"status":"published","duplicateOf":null,"title":null,"description":"An argument injection flaw was found in CUPS. When email notification is configured, the CUPS scheduler accepts printer subscription requests that supply a mailto notify-recipient-uri. The mailto notifier passes the recipient address to the configured sendmail program without ensuring it cannot be interpreted as command-line options. A remote attacker who can reach the CUPS service could supply a crafted recipient value starting with \"-\" to influence sendmail behavior. Successful exploitation depends on the installed mail transfer agent and CUPS network exposure, and may lead to execution of attacker-controlled commands with the privileges of the CUPS service user.","dates":{"published":"2026-10-05T18:58:56.161Z","modified":"2026-10-07T17:20:06.153Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":2.5,"severity":"low","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":2.5,"severity":"low","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Red hat","score":2.5,"severity":"low","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","exploitability":2.6,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV 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