Quick answers
- Is CVE-2026-107888 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-107888 being exploited in the wild.
- How severe is CVE-2026-107888?
- Medium severity, with a CVSS score of 5.1, published 9 October 2026.
- Which products and versions are affected?
- OpenPrinting Cups 2.4.19 and earlier (vulnerable in 2.2.0–2.4.19).
- Is there a fix for CVE-2026-107888?
- Yes: fixed in 2.4.20. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-107888 attacked?
- It is attacked with local access, in a hosted service.
- Am I affected by CVE-2026-107888?
- Check whether you run OpenPrinting Cups at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 2.4.20
Technical details
The vulnerability is a NULL pointer dereference in cupsdCheckJobs() at scheduler/job.c:333, triggered when processing a job with "job-held-on-create" reason that references a temporary printer deleted by cupsdDeleteTemporaryPrinters(). The scheduler does not cancel jobs before removing temporary printers and fails to check whether cupsdFindDest() returns NULL. Exploitation requires a temporary printer configured with hold-new-jobs enabled and a held job remaining after printer deletion; the fix checks for NULL and properly handles orphaned jobs.
Affected products
- OpenPrinting CUPS 2.4.19 and earlier (vulnerable in 2.2.0–2.4.19)
Timeline
- 2026-10-01: disclosed: GitHub security advisory GHSA-qqm8-4q5h-jg55 published
- 2026-10-09: advisory: NVD entry created for CVE-2026-107888
- 2026-10-01: patched: Fixed in CUPS 2.4.20