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TI-2026-27575 Aliases CVE-2026-35444

SDL_image has a heap buffer overflow READ via unchecked colormap index in XCF loader

Priority LOW 31CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00266 18th percentileScored 2026-11-07
Fix Fixed SDL_image (libsdl-org): 996bf12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
libsdl-orgSDL_imagebefore 996bf12996bf12Patch availableCNA
  • SDL_image Vendorlibsdl-org Affected before 996bf12 Fixed in 996bf12 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:libsdl:sdl_image:*:*:*:*:*:*:*:*before 2026-04-02VulnerableLibsdl
  • cpe:2.3:a:libsdl:sdl_image:*:*:*:*:*:*:*:* Versions before 2026-04-02 Vulnerable ·Libsdl

Remediation

  • Fix · CNA SDL_image (libsdl-org) Fixed in 996bf12

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35444

References

Patch 1

  • TI-2026-81161 Stack out-of-bounds read in SDL_image ILBM loader CVSS 4.0MEDIUM 6.9
  • TI-2026-85474 Stack-based buffer overflow in SDL_mixer AIFF decoder CVSS 4.0HIGH 8.5
  • TI-2026-85473 Stack-based buffer overflow in SDL_mixer WAV decoder CVSS 4.0HIGH 8.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences