CVE-2026-22801

EUVD-2026-2416

12.01.2026, 23:15

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	6.8 MEDIUM	LOCAL	LOW	NONE	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
GitHub_M	CNA	6.8 MEDIUM	LOCAL	LOW	NONE	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 4%

Affected Products (NVD)

Vendor	Product	Version
libpng	libpng	1.6.26 ≤ 𝑥 < 1.6.54

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

libpng1.6

bookworm	vulnerable
bookworm (security)	1.6.39-2+deb12u3 fixed
bullseye	vulnerable
bullseye (security)	1.6.37-3+deb11u2 fixed
forky	1.6.55-1 fixed
sid	1.6.55-1 fixed
trixie	vulnerable
trixie (security)	1.6.48-1+deb13u3 fixed

Common Weakness Enumeration

CWE-125 - Out-of-bounds Read
The software reads data past the end, or before the beginning, of the intended buffer.

Vulnerability Media Exposure

[GERMAN] libpng (API-Funktionen): Mehrere Schwachstellen ermöglichen DoS und Offenlegung von Informationen
Ein lokaler Angreifer kann mehrere Schwachstellen in libpng ausnutzen, um einen Denial of Service Angriff durchzuführen oder vertrauliche Informationen offenzulegen.
Published: 2026-01-12T23:00:00+00:00

References

https://github.com/pnggroup/libpng/security/advisories/GHSA-vgjq-8cw5-ggw8