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TI-2026-52801 Aliases CVE-2026-75148GHSA-5hg3-rg59-9qg4

cgltf 1.15 Integer Overflow via cgltf_validate() Accessor Bounds Check

Priority MEDIUM 64CWE-190Published · 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

cgltf through 1.15 contains an integer overflow vulnerability in the non-sparse accessor bounds check within cgltf_validate() that allows remote attackers to cause memory disclosure and denial of service by supplying crafted accessor count values. Attackers can provide malformed .gltf or .glb input with a specially crafted accessor count to overflow the unsigned integer multiplication of accessor stride and element count, causing the bounds check to pass and triggering a heap out-of-bounds read when cgltf_accessor_read_float() is subsequently called on the validated malformed accessor.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00203 10th 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
jkuhlmanncgltfup to 1.15—No fix listedCNA
  • cgltf Vendorjkuhlmann Affected up to 1.15 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-75148
  2. 2026-10-03 Alias added: GHSA-5hg3-rg59-9qg4

References

Other 1

  • TI-2026-76170 Heap out-of-bounds write in cgltf accessor unpacking CVSS 4.0HIGH 7.3
  • TI-2026-25308 jkuhlmann / cgltf <= 1.15 Sparse Accessor Validation Integer Overflow CVSS 4.0MEDIUM 6.9
  • TI-2026-76171 Heap out-of-bounds read in cgltf accessor unpacking CVSS 4.0MEDIUM 6.9

Sources

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