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CVE-2026-34979

OpenPrinting CUPS: Heap overflow in `get_options()`

Published: Apr 3, 2026Updated: Apr 16, 2026 Sources: CVE List NVD BDUCWE-122
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.4%
Top 70.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-122

Affected Products

cupsOpenPrinting
On-prem
OSS Libraries / generic-library
АЛЬТ СП 10АО «ИВК»
On-premOS
Operating Systems / linux-distro
CUPSСообщество свободного программного обеспеченияOperating Systems / unix-bsd
cupsopenprinting
On-prem
OSS Libraries / generic-library
openprintingoss-projectOSS Librariesaka cups, cups-filters, libcupsfilters
ао «ивк»commercialRUOperating Systemsaka ivk
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://github.com/OpenPrinting/cups/security/advisories/GHSA-6qxf-7jx6-86fh
github.com
https://altsp.su/obnovleniya-bezopasnosti/
altsp.su

Timeline

Published
Apr 3, 2026
Last Updated
Apr 16, 2026

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