CVE-2026-107655: CUPS null pointer dereference in IPP job ticket handling

CVE-2026-107655 · Severity: medium · CVSS 4 · Published 2026-10-09

CUPS is a print management service used across enterprise and consumer networks. A flaw in how CUPS processes embedded job ticket comments allows an unauthenticated attacker to crash the print daemon with a specially crafted print request, causing temporary outages for all printing services on affected systems.

Technologies: OpenPrinting Cups. Vendors: OpenPrinting.

Quick answers

Is CVE-2026-107655 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-107655 being exploited in the wild.
How severe is CVE-2026-107655?
Medium severity, with a CVSS score of 4, published 9 October 2026.
Which products and versions are affected?
OpenPrinting CUPS.
Is there a fix for CVE-2026-107655?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-107655 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-107655?
Check whether you run OpenPrinting Cups. 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.

Technical details

The vulnerability is a null pointer dereference triggered by improper handling of specific IPP attributes within embedded job ticket comments during document processing. An unauthenticated attacker with job submission permissions to a shared printer queue can trigger the crash via a crafted IPP request, resulting in denial of service.

Affected products

  • OpenPrinting CUPS

Timeline

  • 2026-10-09: disclosed

References

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