PT-2026-30237 · Openprinting · Cups

Published 2026-04-03 · Updated 2026-04-03 · CVE-2026-34979

Mitre

CVSS v3.1

5.3

Medium

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, there is a heap-based buffer overflow in the CUPS scheduler when building filter option strings from job attribute. At time of publication, there are no publicly available patches.

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-34979

Affected Products

Cups

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-34979 · Security Note
• https://github.com/OpenPrinting/cups/security/advisories/GHSA-6qxf-7jx6-86fh · Note