{"id":"CVE-2026-34980","summary":"OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the network","details":"OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without authentication. The server accepts a page-border value supplied as textWithoutLanguage, preserves an embedded newline through option escaping and reparse, and then reparses the resulting second-line PPD: text as a trusted scheduler control record. A follow-up raw print job can therefore make the server execute an attacker-chosen existing binary such as /usr/bin/vim as lp. At time of publication, there are no publicly available patches.","aliases":["GHSA-4852-v58g-6cwf"],"modified":"2026-07-15T15:14:32.827677153Z","published":"2026-04-03T21:18:09.410Z","related":["ALSA-2026:36733","ALSA-2026:39302","ALSA-2026:39316","SUSE-SU-2026:1617-1","SUSE-SU-2026:21787-1","SUSE-SU-2026:21836-1","SUSE-SU-2026:21850-1","SUSE-SU-2026:21871-1","SUSE-SU-2026:2718-1","SUSE-SU-2026:2732-1","openSUSE-SU-2026:10589-1","openSUSE-SU-2026:20812-1"],"database_specific":{"cwe_ids":["CWE-20"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34980.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34980.json"},{"type":"ADVISORY","url":"https://github.com/OpenPrinting/cups/security/advisories/GHSA-4852-v58g-6cwf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34980"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openprinting/cups","events":[{"introduced":"0"},{"last_affected":"7523763f00d2063f88026d93bc5b29806240de2b"}],"database_specific":{"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"2.4.16"}]}}],"versions":["v2.4.16","v2.4.15","v2.4.14","v2.4.13","v2.4.12","v2.4.11","v2.4.10","v2.4.9","v2.4.8","v2.4.7","v2.4.6","v2.4.5","v2.4.3","v2.4.4","v2.4.2","v2.4.1","v2.4.0","v2.4rc1","v2.4b1","v2.3.3op2","v2.3.3op1","v2.3.3","v2.3.1","v2.3.0","v2.3rc1","v2.3b8","v2.3b7","v2.3b6","v2.3b5","v2.3b4","v2.3b3","v2.3b2","v2.3b1","v2.2.6","v2.2.5","v2.2.4","v2.2.3","v2.2.2","v2.2.1","v2.2.0","v2.2rc1","v2.2b2","v2.2b1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34980.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N"}]}