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.

The following products are affected by CVE-2026-39316 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-39316.

URL	Resource
https://github.com/OpenPrinting/cups/security/advisories/GHSA-pjv5-prqp-46rg
https://nvd.nist.gov/vuln/detail/CVE-2026-39316
https://www.cve.org/CVERecord?id=CVE-2026-39316