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high · CVSS 7.5

CVE-2026-64612

Libcupsfilters: cups-filters: libcupsfilters: cups image filter process abort via malformed png

Published 20 Jul 2026 · Source updated 5 Nov 2026 · Retrieved 2026-11-05 22:56 UTC

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What happened?

A flaw was found in libcupsfilters and cups-filters. The PNG image reading function creates a libpng reader without installing an error recovery handler, causing the CUPS image filter process to abort when processing a malformed PNG file. An unauthenticated attacker could exploit this by submitting a specially crafted PNG print job, leading to denial of service of the in-flight print job.

Description supplied by CVE Program. Formatting is simplified; follow the original advisory for full details.

Affected software and versions

Source-provided software and version information
SoftwareVersion informationFixed version
libcupsfiltersRed Hatunaffected: 1:2.0.0-13.el10_2 to < *See vendor advisory
cups-filtersRed Hatunaffected: 0:1.20.0-36.el8_10.1 to < *See vendor advisory
cups-filtersRed Hatunaffected: 0:1.28.7-27.el9_8 to < *See vendor advisory
cups-filtersRed HatDefault status: unaffectedSee vendor advisory
cups-filtersRed HatDefault status: unknownSee vendor advisory

Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.

Is it being exploited?

This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.

CISA data retrieved 2026-11-06 16:38 UTC. Check CISA ↗

How to respond

  1. Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
  2. Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
  3. Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.

Sources and remediation references

This public advisory does not determine whether a particular server is affected. Records are refreshed as sources change; verify urgent decisions against the original advisory.

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