8.3
HIGH
CVSS 4.0
CVE-2026-25646
LIBPNG has a heap buffer overflow in png_set_quantize
Overview
Description
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55.
Details
INFO
Published Date :
Feb. 10, 2026, 6:16 p.m.
Last Modified :
June 30, 2026, 3:17 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
Update Libpng to version 1.6.55 or later to fix an out-of-bounds read vulnerability.
- Update Libpng to version 1.6.55 or later.
- Apply patches or security updates from the vendor.
Public PoC/Exploit Available at Github
CVE-2026-25646 has a 4 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-25646.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-25646 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-25646
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Created this repo for Git /Github action training
Java
Updated: 3 months, 1 week ago
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Born at : March 26, 2026, 10:21 a.m.
This repo has been linked 4 different CVEs too.
CI Build Container for Java Applications
Dockerfile Java
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Born at : March 21, 2026, 11:05 p.m.
This repo has been linked 2 different CVEs too.
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This repo has been linked 1 different CVEs too.
Config files for my GitHub profile.
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Updated: 2 months, 2 weeks ago
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Born at : May 8, 2024, 3:33 a.m.
This repo has been linked 31 different CVEs too.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25646 vulnerability anywhere in the article.
-
Daily CyberSecurity
The 30-Year Glitch: RCE and ARM Exploits Uncovered in libpng Reference Library
Security researchers have disclosed two significant vulnerabilities in libpng, the official reference library for Portable Network Graphics (PNG). The flaws, which impact versions spanning decades of ... Read more
Published Date:
Mar 30, 2026 (3 months, 1 week ago)
-
The Hacker News
Weekly Recap: Outlook Add-Ins Hijack, 0-Day Patches, Wormable Botnet & AI Malware
This week’s recap shows how small gaps are turning into big entry points. Not always through new exploits, often through tools, add-ons, cloud setups, or workflows that people already trust and rarely ... Read more
Published Date:
Feb 16, 2026 (4 months, 3 weeks ago)
The following table lists the changes that have been made to the
CVE-2026-25646 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jun. 30, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk_els:11::el7'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenJDK 11 ELS for RHEL 7', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_els:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux Server Optional (v. 7 ELS)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk_els:11::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenJDK 11 ELS for RHEL 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.12::el8'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.12', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk_els:11::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenJDK 11 ELS for RHEL 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.13::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.13', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.14::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.14', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.15::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.15', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.16::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.16', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.17::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.17', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.18::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.18', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openshift:4.19::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat OpenShift Container Platform 4.19', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.2::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v. 8.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus_long_life:8.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_aus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_tus:8.8::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.0::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_e4s:9.2::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.1'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.2::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v. 8.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus_long_life:8.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_aus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS AUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_tus:8.8::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS TUS (v.8.8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.0::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_e4s:9.2::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS E4S (v.9.2)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.4::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:rhel_eus:9.6::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9::baseos'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux BaseOS (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:8::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CRB (v. 8)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.4::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.4)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat CodeReady Linux Builder EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::crb'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk_els:11'], 'vendor': 'Red Hat', 'product': 'OPENJDK ELS 11.0.31', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ai_inference_server:3.3::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat AI Inference Server 3.3', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk:17'], 'vendor': 'Red Hat', 'product': 'Red Hat Build of OpenJDK 17.0.9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:ceph_storage:8::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Ceph Storage 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:discovery:2::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Discovery 2', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk:1.8'], 'vendor': 'Red Hat', 'product': 'Red Hat build of OpenJDK 1.8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk:21'], 'vendor': 'Red Hat', 'product': 'Red Hat build of OpenJDK 21', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:openjdk:25'], 'vendor': 'Red Hat', 'product': 'Red Hat build of OpenJDK 25', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 10', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 6', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:7'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 7', 'defaultStatus': 'unaffected'}] Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H Added CWE CWE-125 Added Reference https://access.redhat.com/errata/RHSA-2026:10097 Added Reference https://access.redhat.com/errata/RHSA-2026:12274 Added Reference https://access.redhat.com/errata/RHSA-2026:14773 Added Reference https://access.redhat.com/errata/RHSA-2026:15087 Added Reference https://access.redhat.com/errata/RHSA-2026:16174 Added Reference https://access.redhat.com/errata/RHSA-2026:17596 Added Reference https://access.redhat.com/errata/RHSA-2026:3031 Added Reference https://access.redhat.com/errata/RHSA-2026:3405 Added Reference https://access.redhat.com/errata/RHSA-2026:3551 Added Reference https://access.redhat.com/errata/RHSA-2026:3573 Added Reference https://access.redhat.com/errata/RHSA-2026:3574 Added Reference https://access.redhat.com/errata/RHSA-2026:3575 Added Reference https://access.redhat.com/errata/RHSA-2026:3576 Added Reference https://access.redhat.com/errata/RHSA-2026:3577 Added Reference https://access.redhat.com/errata/RHSA-2026:3968 Added Reference https://access.redhat.com/errata/RHSA-2026:3969 Added Reference https://access.redhat.com/errata/RHSA-2026:4221 Added Reference https://access.redhat.com/errata/RHSA-2026:4222 Added Reference https://access.redhat.com/errata/RHSA-2026:4306 Added Reference https://access.redhat.com/errata/RHSA-2026:4501 Added Reference https://access.redhat.com/errata/RHSA-2026:4728 Added Reference https://access.redhat.com/errata/RHSA-2026:4729 Added Reference https://access.redhat.com/errata/RHSA-2026:4730 Added Reference https://access.redhat.com/errata/RHSA-2026:4731 Added Reference https://access.redhat.com/errata/RHSA-2026:4732 Added Reference https://access.redhat.com/errata/RHSA-2026:4756 Added Reference https://access.redhat.com/errata/RHSA-2026:5606 Added Reference https://access.redhat.com/errata/RHSA-2026:6439 Added Reference https://access.redhat.com/errata/RHSA-2026:6445 Added Reference https://access.redhat.com/errata/RHSA-2026:6466 Added Reference https://access.redhat.com/errata/RHSA-2026:6467 Added Reference https://access.redhat.com/errata/RHSA-2026:6468 Added Reference https://access.redhat.com/errata/RHSA-2026:6469 Added Reference https://access.redhat.com/errata/RHSA-2026:6553 Added Reference https://access.redhat.com/errata/RHSA-2026:6732 Added Reference https://access.redhat.com/errata/RHSA-2026:7032 Added Reference https://access.redhat.com/errata/RHSA-2026:7033 Added Reference https://access.redhat.com/errata/RHSA-2026:7034 Added Reference https://access.redhat.com/errata/RHSA-2026:7035 Added Reference https://access.redhat.com/errata/RHSA-2026:7036 Added Reference https://access.redhat.com/errata/RHSA-2026:7239 Added Reference https://access.redhat.com/errata/RHSA-2026:7243 Added Reference https://access.redhat.com/errata/RHSA-2026:8746 Added Reference https://access.redhat.com/errata/RHSA-2026:8747 Added Reference https://access.redhat.com/errata/RHSA-2026:8748 Added Reference https://access.redhat.com/errata/RHSA-2026:9254 Added Reference https://access.redhat.com/errata/RHSA-2026:9255 Added Reference https://access.redhat.com/errata/RHSA-2026:9686 Added Reference https://access.redhat.com/errata/RHSA-2026:9687 Added Reference https://access.redhat.com/security/cve/CVE-2026-25646 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2438542 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25646.json -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'pnggroup', 'product': 'libpng', 'versions': [{'status': 'affected', 'version': '< 1.6.55'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-25646', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-02-11T15:31:50.552532Z'} -
Initial Analysis by [email protected]
Feb. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:* versions up to (excluding) 1.6.55 Added Reference Type GitHub, Inc.: https://github.com/pnggroup/libpng/commit/01d03b8453eb30ade759cd45c707e5a1c7277d88 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/pnggroup/libpng/security/advisories/GHSA-g8hp-mq4h-rqm3 Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/pnggroup/libpng/security/advisories/GHSA-g8hp-mq4h-rqm3 Types: Exploit, Vendor Advisory Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/02/09/7 Types: Mailing List -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 11, 2026
Action Type Old Value New Value Added Reference https://github.com/pnggroup/libpng/security/advisories/GHSA-g8hp-mq4h-rqm3 -
New CVE Received by [email protected]
Feb. 10, 2026
Action Type Old Value New Value Added Description LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55. Added CVSS V4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-122 Added CWE CWE-126 Added Reference https://github.com/pnggroup/libpng/commit/01d03b8453eb30ade759cd45c707e5a1c7277d88 Added Reference https://github.com/pnggroup/libpng/security/advisories/GHSA-g8hp-mq4h-rqm3 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Feb. 10, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/02/09/7
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.