CVE-2026-22801
Published: December 1, 2026
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.
MEDIUM
CVSS v3: 6.8
CVSS v3: 6.8
Status
| DocFilters Release | Package | State | Justification | Comment |
|---|---|---|---|---|
| 0.0.0.1 | libpng (1.6.40) | Needs Triage | ||
| 25.4 | libpng (1.6.40) | Needs Triage | ||
| 25.3 | libpng (1.6.40) | Needs Triage | ||
| 25.2 | libpng (1.6.40) | Needs Triage | ||
| 25.1.1 | libpng (1.6.40) | Needs Triage | ||
| 25.1 | libpng (1.6.40) | Needs Triage | ||
| 24.4 | libpng (1.6.40) | Needs Triage | ||
| 24.4.0 | libpng (1.6.40) | Needs Triage | ||
| 24.3 | libpng (1.6.40) | Needs Triage | ||
| 24.2.1 | libpng (1.6.40) | Needs Triage | ||
| 24.2 | libpng (1.6.40) | Needs Triage | ||
| 24.1 | libpng (1.6.40) | Needs Triage | ||
| 23.3 | libpng (1.6.40) | Needs Triage | ||
| 23.2.1 | libpng (1.6.37) | Needs Triage | ||
| 23.2 | libpng (1.6.37) | Needs Triage | ||
| 23.1 | libpng (1.6.37) | Needs Triage | ||
| 22.4 | libpng (1.6.37) | Needs Triage | ||
| 22.3 | libpng (1.6.37) | Needs Triage | ||
| 22.2 | libpng (1.6.37) | Needs Triage | ||
| 22.1 | libpng (1.6.37) | Needs Triage | ||
| 21.11.1 | libpng (1.6.37) | Needs Triage | ||
| 21.11 | libpng (1.6.37) | Needs Triage | ||
| 21.8.1 | libpng (1.6.37) | Needs Triage | ||
| 21.8 | libpng (1.6.37) | Needs Triage | ||
| 21.5.1 | libpng (1.6.37) | Needs Triage | ||
| 21.5.0 | libpng (1.6.37) | Needs Triage | ||
| 21.2.0 | libpng (1.6.37) | Needs Triage | ||
| 11.4.20 | libpng (1.6.37) | Needs Triage | ||
| 11.4.19.3667 | libpng (1.6.37) | Needs Triage | ||
| 11.4.18.3599 | libpng (1.6.37) | Needs Triage | ||
| 11.4.17 | libpng (1.6.37) | Needs Triage | ||
| 11.4.16.3445 | libpng (1.6.28) | Needs Triage | ||
| 11.4.15.3368 | libpng (1.6.28) | Needs Triage | ||
| 11.4.14.3263 | libpng (1.6.28) | Needs Triage | ||
| 11.4.13.3179 | libpng (1.6.28) | Needs Triage | ||
| 11.4.12.3054 | libpng (1.6.28) | Needs Triage | ||
| 11.4.11.3040 | libpng (1.6.28) | Needs Triage | ||
| 11.4.11.2990 | libpng (1.6.28) | Needs Triage | ||
| 11.4.10.2934 | libpng (1.6.28) | Needs Triage | ||
| 11.4.9.2878 | libpng (1.6.28) | Needs Triage | ||
| 11.4.8.2822 | libpng (1.6.28) | Needs Triage |
Severity score breakdown
Attack Complexity
LOW
Attack Vector
LOCAL
Availability Impact
HIGH
Base Score
6.8
Base Severity
MEDIUM
Confidentiality Impact
LOW
Integrity Impact
NONE
Privileges Required
NONE
Scope
UNCHANGED
User Interaction
NONE
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Version
3.1