Description
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.
Details
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| libpng | โ | 1.6.51 |
| platform/external/libpng | 14:0 | 14:2026-06-01 |
References
Similar Threats
- Unknown ALPINE-CVE-2026-40930
- Unknown ALSA-2026:18028
- Unknown ALSA-2026:18064
- Unknown ALSA-2026:14790
- Unknown ALSA-2026:14791
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