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.

MediumVendor CVSS 5.1 / 10 1 CVE Published Oct 10, 2026 at 1:09 AM UTC

Summary

Mariner

Release Notes

Oct 10, 2026 at 1:09 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Oct 12, 2026 at 10:25 AM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Oct 21, 2026 at 1:15 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Details collected from Microsoft Security Response Center.

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