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CVE-2026-22801

LIBPNG has an integer truncation causing heap buffer over-read in png_image_write_*

Published: Jan 12, 2026Updated: Jan 21, 2026 Sources: CVE List NVD BDUCWE-125
NVD MITRE
6.8CVSSMEDIUM
EPSS Score
0.1%
Top 98.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:LI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-125CWE-190

Affected Products

libpngpnggroup
Library
OSS Libraries / generic-library
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
OpenShift Container PlatformRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / container-orchestration
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Red Hat build of OpenJDKRed Hat Inc.
LibraryLibrary
OSS Libraries / generic-library
pnggrouposs-projectOSS Librariesaka libpng
red hat inc.commercialUSOperating Systemsaka red hat
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 9 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Initial Access
View detailed technique mapping

References

https://github.com/pnggroup/libpng/security/advisories/GHSA-vgjq-8cw5-ggw8
github.com
https://github.com/pnggroup/libpng/security/advisories/GHSA-vgjq-8cw5-ggw8
github.com
https://access.redhat.com/security/cve/cve-2026-22801
access.redhat.com
and 4 more references View all →

Timeline

Published
Jan 12, 2026
Last Updated
Jan 21, 2026

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