VDB
ALPINE-CVE-2026-22801
ALPINE-CVE-2026-22801
PUBLISHED
CVSS 7.800000190734863 HIGH
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.
Risk Scores
CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.21 | libpng | 0, 1.2.34-r0, 1.2.36-r0 |
| Alpine:v3.22 | libpng | 1.4.5-r0, 1.4.1-r0, 0 |
| Alpine:v3.23 | libpng | 1.6.43-r0, 1.6.44-r0, 1.6.46-r0 |
| Alpine:v3.20 | libpng | 1.6.39-r0, 1.2.36-r0, 0 |
Timeline
- Jan 12, 2026 CVE Published
- Jan 22, 2026 CVE Updated
- Apr 30, 2026 Distribution Patch