PT-2026-61668 · Red Hat+1 · Red Hat Enterprise Linux 10+2

CVE-2026-64612 · Published 2026-07-20 · Updated 2026-07-21

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libcupsfilters (affected versions not specified) cups-filters (affected versions not specified) Red Hat Enterprise Linux 10 (affected versions not specified)

Description A flaw exists in the PNG image reading function of libcupsfilters and cups-filters. The function creates a libpng reader without installing an error recovery handler, which causes the CUPS image filter process to abort when it encounters a malformed PNG file. An unauthenticated attacker can exploit this by submitting a specially crafted PNG print job, resulting in a denial of service for the print job currently being processed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-248

Related Identifiers

CVE-2026-64612

Affected Products

Red Hat Enterprise Linux 10

Cups-Filters

Libcupsfilters

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-64612 · Security Note
• https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-7mxj-cfq5-84ch · Note
• https://twitter.com/VulmonFeeds/status/2079360817149943878 · Twitter Post
• https://bugzilla.redhat.com/show_bug.cgi?id=2502801 · Note
• https://twitter.com/vulnipulse/status/2079445609430552955 · Twitter Post
• https://access.redhat.com/security/cve/CVE-2026-64612 · Note