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Fencer Vulns
medium 6.8

CVE-2026-22801 json

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

published 2026-01-12 9 mo ago modified 2026-07-25 3 mo ago also EUVD-2026-2416 , JLSEC-2026-8

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits
0
none known

Summary

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.

Patch / fix

  • julia libpng_jll 1.6.54+0
  • libpng libpng 1.6.54
  • libpng1.6 Debian 12 1.6.39-2+deb12u2
  • libpng1.6 Debian 13 1.6.48-1+deb13u2
  • libpng1.6 Debian 14 1.6.54-1

debian advisories DEBIAN-CVE-2026-22801

  • libpng1.6 Ubuntu 22.04 LTS 1.6.37-3ubuntu0.3
  • libpng1.6 Ubuntu 24.04 LTS 1.6.43-5ubuntu0.3
  • libpng1.6 Ubuntu 25.10 1.6.50-1ubuntu0.3
  • libpng1.6 Ubuntu 26.04 LTS 1.6.54-1
  • libpng1.6 Ubuntu Pro 18.04 LTS 1.6.34-1ubuntu0.18.04.2+esm2
  • libpng1.6 Ubuntu Pro 20.04 LTS 1.6.37-2ubuntu0.1~esm2

ubuntu advisories UBUNTU-CVE-2026-22801

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libpng hummingbird 1 1.6.58-2.1.hum1
  • libpng-tools hummingbird 1 1.6.58-2.1.hum1
  • java-21-openjdk RHEL 10.1 1:21.0.11.0.10-2.el10_2
  • java-21-openjdk RHEL 8 1:21.0.11.0.10-1.el8
  • java-21-openjdk RHEL 9 1:21.0.11.0.10-2.el9
  • java-21-openjdk-src RHEL 10.1 1:21.0.11.0.10-2.el10_2
  • java-21-openjdk-src RHEL 8 1:21.0.11.0.10-1.el8
  • java-21-openjdk-src RHEL 9 1:21.0.11.0.10-2.el9

red hat advisories RHSA-2026:80330RHSA-2026:9689RHSA-2026:9686RHSA-2026:9683RHSA-2026:9254RHSA-2026:6732

  • libpng16 Linux Micro 6.1 1.6.58-slfo.1.1_1.1
  • libpng16 Linux Micro 6.0 1.6.58-1.1
  • libpng16 Linux Micro 6.1 1.6.43-slfo.1.1_3.1
  • libpng16 Linux Micro 6.0 1.6.43-3.1
  • libpng16 SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +9 more 1.6.34-150000.3.19.1
  • libpng16 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 1.6.44-160000.4.1
  • libpng16 SLE Module for Basesystem 15 SP7, openSUSE Leap 15.6 1.6.40-150600.3.6.1

suse advisories SUSE-SU-2026:23514-1SUSE-SU-2026:23063-1SUSE-SU-2026:20530-1SUSE-SU-2026:20523-1SUSE-SU-2026:0596-1SUSE-SU-2026:20127-1

  • libpng16 openSUSE Leap 16.0 1.6.44-160000.4.1
  • libpng16 openSUSE Tumbleweed 1.6.54-1.1

opensuse advisories openSUSE-SU-2026:20083-1openSUSE-SU-2026:10060-1

  • java-1.8.0-openjdk AlmaLinux 8 1:1.8.0.492.b09-1.el8
  • java-1.8.0-openjdk AlmaLinux 9 1:1.8.0.492.b09-2.el9.alma.1
  • java-1.8.0-openjdk-src AlmaLinux 8 1:1.8.0.492.b09-1.el8
  • java-1.8.0-openjdk-src AlmaLinux 9 1:1.8.0.492.b09-2.el9.alma.1
  • java-1.8.0-openjdk-demo AlmaLinux 8 1:1.8.0.492.b09-1.el8
  • java-1.8.0-openjdk-demo AlmaLinux 9 1:1.8.0.492.b09-2.el9.alma.1
  • java-1.8.0-openjdk-javadoc AlmaLinux 8 1:1.8.0.492.b09-1.el8
  • java-1.8.0-openjdk-javadoc AlmaLinux 9 1:1.8.0.492.b09-2.el9.alma.1

almalinux advisories ALSA-2026:9683ALSA-2026:9686ALSA-2026:9689ALSA-2026:4728ALSA-2026:4306ALSA-2026:3551

  • libpng Rocky Linux 8 2:1.6.34-10.el8_10
  • mingw-libpng Rocky Linux 8 1.6.34-2.el8_10
  • libpng Rocky Linux 10 2:1.6.40-8.el10_1.2
  • libpng Rocky Linux 9 2:1.6.37-12.el9_7.2

rocky linux advisories RLSA-2026:4728RLSA-2026:4306RLSA-2026:3551RLSA-2026:3405

  • libpng Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 1.6.54-r0

alpine advisories ALPINE-CVE-2026-22801

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libpng CBL-Mariner 2.0, Azure Linux 3.0 1.6.54-1

azure linux advisories AZL-74264AZL-74283

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-22801 updated cvss 6.6

libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API

  • Red Hat Enterprise Linux 6 libpng
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 java-25-openjdk, java-25-openjdk-src, java-25-openjdk-demo, java-25-openjdk-jmods, java-25-openjdk-javadoc, java-25-openjdk-headless, +19 more Red Hat Enterprise Linux 10 java-25-openjdk
    affected: workaround, no fix available
  • Red Hat OPENJDK ELS 11.0.31
    fixed: vendor fix RHSA-2026:9255
  • Red Hat AI Inference Server 3.3 rhaiis 1775680192, rhaiis 1775680262, rhaiis 1775749857, rhaiis 1778244546
    fixed: vendor fix RHSA-2026:8748
  • Red Hat Build of OpenJDK 8u492
    fixed: vendor fix RHSA-2026:9684
  • Red Hat Build of OpenJDK 17.0.9
    fixed: vendor fix RHSA-2026:9687
  • Red Hat Build of OpenJDK 21.0.11
    fixed: vendor fix RHSA-2026:9690
  • Red Hat Build of OpenJDK 25.0.2
    fixed: vendor fix RHBA-2026:6267
show 17 more
  • Red Hat Build of OpenJDK 25.0.3
    fixed: vendor fix RHSA-2026:9694
  • Red Hat Ceph Storage 8 rhceph 1774002867
    fixed: vendor fix RHSA-2026:5606
  • Red Hat CodeReady Linux Builder EUS (v.9.4) java-17-openjdk-fastdebug 17.0.19.0.10-1.el9, java-17-openjdk-slowdebug 17.0.19.0.10-1.el9, java-21-openjdk-fastdebug 21.0.11.0.10-1.el9, java-21-openjdk-slowdebug 21.0.11.0.10-1.el9, java-1.8.0-openjdk-fastdebug 1.8.0.492.b09-1.el9, java-1.8.0-openjdk-slowdebug 1.8.0.492.b09-1.el9, +32 more Red Hat CodeReady Linux Builder EUS (v.9.6) java-17-openjdk-fastdebug 17.0.19.0.10-1.el9, java-17-openjdk-slowdebug 17.0.19.0.10-1.el9, java-21-openjdk-fastdebug 21.0.11.0.10-1.el9, java-21-openjdk-slowdebug 21.0.11.0.10-1.el9, java-1.8.0-openjdk-fastdebug 1.8.0.492.b09-1.el9, java-1.8.0-openjdk-slowdebug 1.8.0.492.b09-1.el9, +32 more
    fixed: vendor fix RHSA-2026:9689
  • Red Hat Discovery 2 discovery 1773273070
    fixed: vendor fix RHSA-2026:4501
  • Red Hat Enterprise Linux AppStream (v. 8) java-17-openjdk 17.0.19.0.10-1.el8, java-21-openjdk 21.0.11.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-21-openjdk-src 21.0.11.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, +17 more Red Hat Enterprise Linux AppStream (v. 9) libpng 1.6.37-12.el9_7.2, java-17-openjdk 17.0.19.0.10-2.el9, java-21-openjdk 21.0.11.0.10-2.el9, java-1.8.0-openjdk 1.8.0.492.b09-2.el9, java-17-openjdk-src 17.0.19.0.10-2.el9, java-21-openjdk-src 21.0.11.0.10-2.el9, +17 more Red Hat Enterprise Linux AppStream (v. 10) libpng 1.6.40-8.el10_1.2, java-21-openjdk 21.0.11.0.10-2.el10_2, java-21-openjdk-src 21.0.11.0.10-2.el10_2, java-21-openjdk-demo 21.0.11.0.10-2.el10_2, java-21-openjdk-jmods 21.0.11.0.10-2.el10_2, java-21-openjdk-javadoc 21.0.11.0.10-2.el10_2, +3 more
    fixed: vendor fix RHSA-2026:9689
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, java-1.8.0-openjdk-demo 1.8.0.492.b09-1.el8, java-1.8.0-openjdk-javadoc 1.8.0.492.b09-1.el8, java-1.8.0-openjdk-headless 1.8.0.492.b09-1.el8, java-1.8.0-openjdk-javadoc-zip 1.8.0.492.b09-1.el8, +1 more Red Hat Enterprise Linux AppStream AUS (v.8.4) java-17-openjdk 17.0.19.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, java-17-openjdk-jmods 17.0.19.0.10-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, +9 more Red Hat Enterprise Linux AppStream AUS (v.8.6) java-17-openjdk 17.0.19.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, java-17-openjdk-jmods 17.0.19.0.10-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, +9 more Red Hat Enterprise Linux AppStream E4S (v.8.6) java-17-openjdk 17.0.19.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, java-17-openjdk-jmods 17.0.19.0.10-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, +9 more Red Hat Enterprise Linux AppStream E4S (v.8.8) java-17-openjdk 17.0.19.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, java-17-openjdk-jmods 17.0.19.0.10-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, +9 more Red Hat Enterprise Linux AppStream E4S (v.9.0) libpng 1.6.37-12.el9_0.2, java-17-openjdk 17.0.19.0.10-1.el9, java-1.8.0-openjdk 1.8.0.492.b09-1.el9, java-17-openjdk-src 17.0.19.0.10-1.el9, java-17-openjdk-demo 17.0.19.0.10-1.el9, java-17-openjdk-jmods 17.0.19.0.10-1.el9, +9 more
    +1 more products
    Red Hat Enterprise Linux AppStream E4S (v.9.2) libpng 1.6.37-12.el9_2.2, java-17-openjdk 17.0.19.0.10-1.el9, java-1.8.0-openjdk 1.8.0.492.b09-1.el9, java-17-openjdk-src 17.0.19.0.10-1.el9, java-17-openjdk-demo 17.0.19.0.10-1.el9, java-17-openjdk-jmods 17.0.19.0.10-1.el9, +9 more
    fixed: vendor fix RHSA-2026:9683
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) libpng 1.6.40-8.el10_0.2, java-21-openjdk 21.0.11.0.10-1.el10_2, java-21-openjdk-src 21.0.11.0.10-1.el10_2, java-21-openjdk-demo 21.0.11.0.10-1.el10_2, java-21-openjdk-jmods 21.0.11.0.10-1.el10_2, java-21-openjdk-javadoc 21.0.11.0.10-1.el10_2, +3 more Red Hat Enterprise Linux AppStream EUS (v.9.4) libpng 1.6.37-12.el9_4.2, java-17-openjdk 17.0.19.0.10-1.el9, java-21-openjdk 21.0.11.0.10-1.el9, java-1.8.0-openjdk 1.8.0.492.b09-1.el9, java-17-openjdk-src 17.0.19.0.10-1.el9, java-21-openjdk-src 21.0.11.0.10-1.el9, +17 more Red Hat Enterprise Linux AppStream EUS (v.9.6) libpng 1.6.37-12.el9_6.2, java-17-openjdk 17.0.19.0.10-1.el9, java-21-openjdk 21.0.11.0.10-1.el9, java-1.8.0-openjdk 1.8.0.492.b09-1.el9, java-17-openjdk-src 17.0.19.0.10-1.el9, java-21-openjdk-src 21.0.11.0.10-1.el9, +17 more
    fixed: vendor fix RHSA-2026:9689
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) java-17-openjdk 17.0.19.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, java-17-openjdk-jmods 17.0.19.0.10-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, +23 more Red Hat Enterprise Linux AppStream TUS (v.8.6) java-17-openjdk 17.0.19.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, java-17-openjdk-jmods 17.0.19.0.10-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, +9 more Red Hat Enterprise Linux AppStream TUS (v.8.8) java-17-openjdk 17.0.19.0.10-1.el8, java-1.8.0-openjdk 1.8.0.492.b09-1.el8, java-17-openjdk-src 17.0.19.0.10-1.el8, java-17-openjdk-demo 17.0.19.0.10-1.el8, java-17-openjdk-jmods 17.0.19.0.10-1.el8, java-1.8.0-openjdk-src 1.8.0.492.b09-1.el8, +9 more
    fixed: vendor fix RHSA-2026:9683
  • Red Hat Enterprise Linux BaseOS (v. 8) libpng 1.6.34-10.el8_10
    fixed: vendor fix RHSA-2026:4728
  • Red Hat Enterprise Linux BaseOS (v. 9) libpng 1.6.37-12.el9_7.2
    fixed: vendor fix RHSA-2026:3405
  • Red Hat Enterprise Linux BaseOS (v. 10) libpng 1.6.40-8.el10_1.2
    fixed: vendor fix RHSA-2026:3551
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) libpng 1.6.34-8.el8_2.2
    fixed: vendor fix RHSA-2026:4732
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) libpng 1.6.34-8.el8_4.2
    fixed: vendor fix RHSA-2026:4731
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) libpng 1.6.34-8.el8_6.2 Red Hat Enterprise Linux BaseOS E4S (v.8.6) libpng 1.6.34-8.el8_6.2
    fixed: vendor fix RHSA-2026:4730
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) libpng 1.6.34-8.el8_8.2
    fixed: vendor fix RHSA-2026:4729
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) libpng 1.6.37-12.el9_0.2
    fixed: vendor fix RHSA-2026:3573
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) libpng 1.6.37-12.el9_2.2
    fixed: vendor fix RHSA-2026:3575

15 more fixed, 10 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
julia libpng_jll
<1.6.54+0
1.6.54+0

Affected products

  • pnggroup libpng

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.