Flaw in CUPS Affects Shared Printer Queue Management
CVE-2026-107655

4MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Hardened Images
Vendor
CVE Published:
9 October 2026

What is CVE-2026-107655?

A flaw within the Common UNIX Printing System (CUPS) has been identified, which arises when processing embedded job ticket comments in documents. The service improperly manages specific Internet Printing Protocol (IPP) attributes, leading to an unhandled null pointer dereference. This vulnerability allows an unauthenticated attacker, who has the ability to submit jobs to a shared printer queue, to craft a malicious IPP request. As a result, this could crash the print daemon, creating a Denial of Service (DoS) that temporarily halts all printing services for users reliant on this functionality.

References

https://access.redhat.com/security/cve/CVE-2026-107655
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2548399
issue-trackingx_refsource_REDHAT
https://github.com/OpenPrinting/cups/commit/12237ad

CVSS V3.1

Score:
4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.