What’s Vulnerable › Vulnerabilities
CVE-2026-107888
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-10-09 · updated 2026-10-20
- Weakness: CWE-476
Description
OpenPrinting CUPS before 2.4.20 contains a NULL pointer dereference in cupsdCheckJobs() when a job marked job-held-on-create refers to a temporary printer that has been automatically deleted. Temporary-printer cleanup can remove the destination without canceling its held jobs, and the scheduler dereferences the NULL result of cupsdFindDest() while checking holding_new_jobs. This terminates cupsd and interrupts all queues managed by that process. In some plausible scenarios, an unprivileged submission can trigger this.
Affected products
- OpenPrinting cups: before 2.4.20 — fixed in 2.4.20
How to fix
Upgrade to a fixed version: OpenPrinting cups 2.4.20. Check the vendor advisory for mitigations.
References
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