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.

• CWE-416

• https://github.com/OpenPrinting/cups/security/advisories/GHSA-pjv5-prqp-46rgExploit, Mitigation, Vendor Advisory

Published

Apr 7, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-39310Trilium Notes is a cross-platform, hierarchical note taking …8.6
• CVE-2026-39311Trilium Notes is a cross-platform, hierarchical note taking …6.8
• CVE-2026-39312SoftEtherVPN is a an open-source cross-platform multi-protoc…7.5
• CVE-2026-39313mcp-framework is a framework for building Model Context Prot…8.7
• CVE-2026-39314OpenPrinting CUPS is an open source printing system for Linu…6.2
• CVE-2026-39315Unhead is a document head and template manager. Prior to 2.1…6.1
• CVE-2026-39317Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMB…
• CVE-2026-39318ChurchCRM is an open-source church management system. Versio…8.8
• CVE-2026-39319ChurchCRM is an open-source church management system. Prior …8.8
• CVE-2026-3932Insufficient policy enforcement in PDF in Google Chrome on A…7.5
• CVE-2026-39320Signal K Server is a server application that runs on a centr…7.5
• CVE-2026-39321Parse Server is an open source backend that can be deployed …3.7