CVE-2026-75148
cgltf 1.15 Integer Overflow via cgltf_validate() Accessor Bounds Check
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 19, 2026
- Updated
- Aug 21, 2026
- Reserved
- Aug 17, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | VulnCheck |
Weaknesses
- CWE-190 Integer Overflow or Wraparound
Affected Products
| Product | Versions |
|---|---|
cgltfjkuhlmann |
|
References
- Researcher Disclosureissue-tracking
- https://www.vulncheck.com/advisories/cgltf-integer-overflow-via-cgltf-validate-accessor-bounds-checkthird-party-advisory
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