CVE-2026-34980 — OpenPrinting CUPS is an open source printing system for Linux and other Unix-li…
Severity: High · Kind: Vulnerability
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From the source
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.
Vulnerability facts
- CVE
- CVE-2026-34980
- CVSS
- 7.5
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