CVE-2026-107888
Medium
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.
SeverityMedium
CVSS5.1
Exploit probability—
Product
Openprinting Cups
PublishedOct 9, 2026
First seenOct 9, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- openprinting cups2.4.20 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openprinting cups | v < 2.4.20 | 2.4.20 |
| microsoft azl3_cups_2.4.19-1 | No range specified | — |
| microsoft azl3_cups_2.4.19-2 | No range specified | — |
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