Red Hat Security Advisory: libpng security update
The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics (PNG) image format files. Security Fix(es): * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API (CVE-2026-22801) * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695) * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The libpng library in Red Hat Enterprise Linux 8.4 contains three security vulnerabilities: CVE-2026-22801 involves information disclosure and denial of service caused by integer truncation in the simplified write API; CVE-2026-22695 involves denial of service and information disclosure due to a heap buffer over-read in png_image_finish_read; CVE-2026-25646 is a heap buffer overflow in png_set_quantize. These vulnerabilities could allow attackers to cause denial of service or leak information when processing PNG images. Red Hat has released updated libpng packages (version 1.6.34-8.el8_4.2) to fix these issues.
Potential Impact
Successful exploitation of these vulnerabilities could lead to denial of service conditions and information disclosure on systems using the affected libpng versions. The vulnerabilities affect image processing functions, potentially impacting applications that handle PNG files. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has provided an official security update fixing these vulnerabilities in libpng version 1.6.34-8.el8_4.2 for Red Hat Enterprise Linux 8.4 Extended Update Support and Advanced Update Support. Users should apply the update as described in the Red Hat advisory RHSA-2026:4731 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. Patch status is confirmed by the vendor advisory.
Red Hat Security Advisory: libpng security update
Description
The libpng packages contain a library of functions for creating and manipulating Portable Network Graphics (PNG) image format files. Security Fix(es): * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API (CVE-2026-22801) * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695) * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The libpng library in Red Hat Enterprise Linux 8.4 contains three security vulnerabilities: CVE-2026-22801 involves information disclosure and denial of service caused by integer truncation in the simplified write API; CVE-2026-22695 involves denial of service and information disclosure due to a heap buffer over-read in png_image_finish_read; CVE-2026-25646 is a heap buffer overflow in png_set_quantize. These vulnerabilities could allow attackers to cause denial of service or leak information when processing PNG images. Red Hat has released updated libpng packages (version 1.6.34-8.el8_4.2) to fix these issues.
Potential Impact
Successful exploitation of these vulnerabilities could lead to denial of service conditions and information disclosure on systems using the affected libpng versions. The vulnerabilities affect image processing functions, potentially impacting applications that handle PNG files. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has provided an official security update fixing these vulnerabilities in libpng version 1.6.34-8.el8_4.2 for Red Hat Enterprise Linux 8.4 Extended Update Support and Advanced Update Support. Users should apply the update as described in the Red Hat advisory RHSA-2026:4731 and the referenced article https://access.redhat.com/articles/11258 to remediate these issues. Patch status is confirmed by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:4731
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22801","CVE-2026-25646"]
- Cvss Version
- null
Threat ID: 6a1f4e86e29bf47b5007e87d
Added to database: 06/02/2026, 21:43:34 UTC
Last enriched: 06/27/2026, 23:38:53 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 145
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.