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

Source: https://junglewise.ai/threats/cve-2026-107655-a-flaw-was-found-in-cups-when-processing-embedded-job-ticket  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-09. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/cups). Vendors: [OpenPrinting](https://junglewise.ai/threats/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

- [https://catalog.redhat.com/software/containers/](https://catalog.redhat.com/software/containers/)
- [https://access.redhat.com/downloads/content/package-browser/](https://access.redhat.com/downloads/content/package-browser/)

## Related threats

- [OpenPrinting CUPS path traversal in banner processing](https://junglewise.ai/threats/cve-2026-61702-openprinting-cups-is-an-open-source-printing-system-for-linux-and)
- [OpenPrinting CUPS symlink-based file truncation in scheduler](https://junglewise.ai/threats/cve-2026-55480-openprinting-cups-is-an-open-source-printing-system-for-linux-and)
- [OpenPrinting CUPS NULL pointer dereference in cupsdCheckJobs](https://junglewise.ai/threats/cve-2026-107888-openprinting-cups-before-2-4-20-contains-a-null-pointer)
- [CUPS scheduler case-insensitive username comparison in ACL validation](https://junglewise.ai/threats/cve-2026-87876-cups-scheduler-case-insensitive-username-comparison-in-acl)
- [OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.17…](https://junglewise.ai/threats/cve-2026-41079-openprinting-cups-is-an-open-source-printing-system-for-linux-and)