---
id: CVE-2026-107655
title: A flaw was found in CUPS
summary: >-
  A flaw was found in CUPS. When processing embedded job ticket comments within
  documents, the service improperly handles specific IPP attributes, causing an
  unhandled null pointer dereference. An unauthenticated attacker permitted to
  subm…
severity: medium
cvss: 4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-476
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T18:17:02.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107655'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-107655'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2548399'
    label: secalert@redhat.com
  - url: 'https://github.com/OpenPrinting/cups/commit/12237ad'
    label: secalert@redhat.com
  - url: 'https://github.com/OpenPrinting/cups/commit/25d6830'
    label: secalert@redhat.com
  - url: >-
      https://github.com/OpenPrinting/cups/security/advisories/GHSA-58wv-9ffm-5w78
    label: secalert@redhat.com
  - url: >-
      https://github.com/OpenPrinting/cups/security/advisories/GHSA-58wv-9ffm-5w78
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00128
epssPercentile: 0.02133
ingestedAt: '2026-10-09T09:31:01.005Z'
---

## Overview

A flaw was found in CUPS. When processing embedded job ticket comments within documents, the service improperly handles specific IPP attributes, causing an unhandled null pointer dereference. An unauthenticated attacker permitted to submit jobs to a shared printer queue can send a crafted Internet Printing Protocol (IPP) request to crash the print daemon, resulting in a temporary Denial of Service (DoS) for all printing services.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.