CVE-2026-39316

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDeleteTemporaryPrinters() in scheduler/printers.c calls cupsdDeletePrinter() without first expiring subscriptions that reference the printer, leaving cupsd_subscription_t.dest as a dangling pointer to freed heap memory. The dangling pointer is subsequently dereferenced at multiple code sites, causing a crash (denial of service) of the cupsd daemon. With heap grooming, this can be leveraged for code execution.

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/OpenPrinting/cups/security/advisories/GHSA-pjv5-prqp-46rg	Exploit Vendor Advisory Mitigation

Configurations

Configuration 1 (hide)

cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*

History

16 Apr 2026, 18:08

Type	Values Removed	Values Added
References	~~() https://github.com/OpenPrinting/cups/security/advisories/GHSA-pjv5-prqp-46rg -~~	() https://github.com/OpenPrinting/cups/security/advisories/GHSA-pjv5-prqp-46rg - Exploit, Vendor Advisory, Mitigation
First Time		Openprinting cups Openprinting
CPE		cpe:2.3:a:openprinting:cups::::::::

07 Apr 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 17:16

Updated : 2026-04-16 18:08

NVD link : CVE-2026-39316

Mitre link : CVE-2026-39316

CVE.ORG link : CVE-2026-39316

JSON object : View

Products Affected

openprinting

cups

CWE

CWE-416

Use After Free

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