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TI-2026-81161 Aliases CVE-2026-117557GHSA-m3v7-j67w-q2pr

Stack out-of-bounds read in SDL_image ILBM loader

Priority MEDIUM 64CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

SDL_image through 2.8.12 and from 3.0.0 through 3.4.8 is affected. The ILBM loader in IMG_LoadLBM_IO() skips bitplane count validation when HAM mode is set, which leads to an out-of-bounds read (CWE-125). If a user opens a crafted ILBM file with more than 8 HAM bitplanes, the read goes past the colormap stack array, causing crashes or disclosing stack memory.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00129 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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_imageup to 2.8.12; 3.0.0 – 3.4.8—No fix listedCNA
  • SDL_image Vendorlibsdl-org Affected up to 2.8.12; 3.0.0 – 3.4.8 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for SDL_image.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-117557
  2. 2026-10-27 Alias added: GHSA-m3v7-j67w-q2pr
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-10-29 Affected versions changed · Red Hat
  5. 2026-10-29 CVSS score added · Red Hat
  6. 2026-11-04 CISA SSVC decision points changed
  7. 2026-11-04 Priority changed: LOW → MEDIUM

References

Patch 2

Other 3

  • 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