CVE-2026-117557 SDL_image through 3.4.8 and 2.8.12 Stack Out-of-Bounds Read in ILBM Loader

Medium 6.9 Published 27 Oct 2026 Updated 27 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-117557?

CVE-2026-117557 is a medium-severity vulnerability in libsdl-org SDL_image, published on 27 Oct 2026.

Official description

SDL_image through 3.4.8 and through 2.8.12 contains a stack out-of-bounds read vulnerability in IMG_LoadLBM_IO() in src/IMG_lbm.c that skips bitplane count validation when HAM mode is set. Attackers can supply a crafted ILBM file with more than 8 HAM bitplanes to read past the colormap stack array, causing crashes or disclosing stack memory.

Weakness: CWE-125

Which versions are affected by CVE-2026-117557?

How do I fix CVE-2026-117557?

No fix has been published for CVE-2026-117557 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-117557 being exploited?

There is no known exploitation of CVE-2026-117557 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-117557, GHSA-m3v7-j67w-q2pr, UBUNTU-CVE-2026-117557.