CVE-2026-22695: libpng Out-of-bounds Read
Vulnerability summary
CVE-2026-22695 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in libpng. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.9% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 33 · Related 13Timeline
- 12-01-2026PublishedVulnerability first disclosed.
- 13-01-2026Last modifiedVulnerability information updated.
Description
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018. This vulnerability is fixed in 1.6.54.
CVSS metrics
7 scores · 7 sources · 1 version- CVE.orgCNA6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:HDiffers
- OSV · AlpineEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:HDiffers
- OSV · ChainguardEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:HDiffers
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
+0.02 pp
From 0.20% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibpng
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Chainguard5 products
- libpng< 1.6.54-r0
- libpng-dev< 1.6.54-r0
- libpng-doc< 1.6.54-r0
- libpng-static< 1.6.54-r0
- libpng-utils< 1.6.54-r0
Wolfi5 products
- libpng< 1.6.54-r0
- libpng-dev< 1.6.54-r0
- libpng-doc< 1.6.54-r0
- libpng-static< 1.6.54-r0
- libpng-utils< 1.6.54-r0
Alpine1 product
- libpng≥ 1.6.51, < 1.6.54-r0
Debian1 product
- libpng1.6< 1.6.39-2+deb12u2 | < 1.6.48-1+deb13u2 | < 1.6.54-1
Libpng1 product
- libpng≥ 1.6.51, < 1.6.54
Pnggroup1 product
- libpng< 1.6.54
Suse1 product
- libpng16&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5< 1.6.8-15.15.1
Ubuntu1 product
- libpng1.6< 1.6.20-2ubuntu0.1~esm3 | < 1.6.34-1ubuntu0.18.04.2+esm2 | < 1.6.37-2ubuntu0.1~esm2 | < 1.6.37-3ubuntu0.3 | < 1.6.43-5ubuntu0.3 | < 1.6.50-1ubuntu0.3
8 vendors · 16 products
References
16 links- github.com/pnggroup/libpng/security/advisories/GHSA-mmq5-27w3-rxppX Refsource CONFIRMREPORTAdvisoryExploitThird Party Advisory
- github.com/pnggroup/libpng/issues/778X Refsource MISCREPORTExploitIssue TrackingThird Party Advisory