CVE-2026-34979

MEDIUM

OpenPrinting CUPS: Heap overflow in `get_options()`

Title source: cna
STIX 2.1

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)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0038
EPSS Percentile 29.5%
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