# CVE-2026-35444: libsdl2-image: SDL_image is a library to load images of various formats as SDL surfaces

CVE-2026-35444 is fixed in 11 products on 1 platform, first by DEBIAN-CVE-2026-35444, released April 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-35444
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 6, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | SDL2_image Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-F1F87B465A](https://patchblox.com/security/data/fix/linux/fedora-2026-f1f87b465a.md) | May 10, 2026 |
| Linux | SDL2_image-debuginfo Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-F1F87B465A](https://patchblox.com/security/data/fix/linux/fedora-2026-f1f87b465a.md) | May 10, 2026 |
| Linux | SDL2_image-debugsource Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-F1F87B465A](https://patchblox.com/security/data/fix/linux/fedora-2026-f1f87b465a.md) | May 10, 2026 |
| Linux | SDL2_image-devel Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-F1F87B465A](https://patchblox.com/security/data/fix/linux/fedora-2026-f1f87b465a.md) | May 10, 2026 |
| Linux | libsdl2-image Debian 13.5 (trixie) | 2.8.8+dfsg-1+deb13u1 | [DEBIAN-CVE-2026-35444](https://patchblox.com/security/data/fix/linux/debian-cve-2026-35444.md) | Apr 6, 2026 |
| Linux | libsdl2-image Debian 14 | 2.8.10+dfsg-1 | [DEBIAN-CVE-2026-35444](https://patchblox.com/security/data/fix/linux/debian-cve-2026-35444.md) | Apr 6, 2026 |
| Linux | libsdl3-image Debian 13.5 (trixie) | 3.2.4+ds-1+deb13u1 | [DEBIAN-CVE-2026-35444](https://patchblox.com/security/data/fix/linux/debian-cve-2026-35444.md) | Apr 6, 2026 |
| Linux | libsdl3-image Debian 14 | 3.4.2+ds-1 | [DEBIAN-CVE-2026-35444](https://patchblox.com/security/data/fix/linux/debian-cve-2026-35444.md) | Apr 6, 2026 |
| Linux | mingw-SDL2_image Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-BC38EBDF4C](https://patchblox.com/security/data/fix/linux/fedora-2026-bc38ebdf4c.md) | Jun 12, 2026 |
| Linux | mingw32-SDL2_image Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-BC38EBDF4C](https://patchblox.com/security/data/fix/linux/fedora-2026-bc38ebdf4c.md) | Jun 12, 2026 |
| Linux | mingw32-SDL2_image-debuginfo Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-BC38EBDF4C](https://patchblox.com/security/data/fix/linux/fedora-2026-bc38ebdf4c.md) | Jun 12, 2026 |
| Linux | mingw64-SDL2_image Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-BC38EBDF4C](https://patchblox.com/security/data/fix/linux/fedora-2026-bc38ebdf4c.md) | Jun 12, 2026 |
| Linux | mingw64-SDL2_image-debuginfo Fedora 43 | 2.8.12-1.fc43 | [FEDORA-2026-BC38EBDF4C](https://patchblox.com/security/data/fix/linux/fedora-2026-bc38ebdf4c.md) | Jun 12, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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