CVE-2026-34979

MEDIUM

OpenPrinting CUPS: Heap overflow in `get_options()`

Title source: cna

Description

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.

References (1)

[X_Refsource_Confirm] https://github.com/OpenPrinting/cups/security/advisories/GHSA-6qxf-7jx6-86fh

Scores

CVSS v3 5.3

EPSS 0.0005

EPSS Percentile 16.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-122

Status published

Products (2)

openprinting/cups < 2.4.16

OpenPrinting/cups <= 2.4.16

Published Apr 03, 2026

Tracked Since Apr 04, 2026