CVE-2026-35444

SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/libsdl-org/SDL_image/security/advisories/GHSA-gq8w-x74c-h6p7	Vendor Advisory Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:libsdl:sdl_image:*:*:*:*:*:*:*:*

History

16 Apr 2026, 04:41

Type	Values Removed	Values Added
References	~~() https://github.com/libsdl-org/SDL_image/security/advisories/GHSA-gq8w-x74c-h6p7 -~~	() https://github.com/libsdl-org/SDL_image/security/advisories/GHSA-gq8w-x74c-h6p7 - Vendor Advisory, Patch
First Time		Libsdl sdl Image Libsdl
CPE		cpe:2.3:a:libsdl:sdl_image::::::::

06 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-06 22:16

Updated : 2026-04-16 04:41

NVD link : CVE-2026-35444

Mitre link : CVE-2026-35444

CVE.ORG link : CVE-2026-35444

JSON object : View

Products Affected

libsdl

sdl_image

CWE

CWE-125

Out-of-bounds Read

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