What’s Vulnerable › Vulnerabilities
CVE-2026-32845: jkuhlmann / cgltf <= 1.15 Sparse Accessor Validation Integer Overflow
- Severity: high (CVSS 8.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-23 · updated 2026-07-14
- Weakness: CWE-190
Description
cgltf version 1.15 and prior contain an integer overflow vulnerability in the cgltf_validate() function when validating sparse accessors that allows attackers to trigger out-of-bounds reads by supplying crafted glTF/GLB input files with attacker-controlled size values. Attackers can exploit unchecked arithmetic operations in sparse accessor validation to cause heap buffer over-reads in cgltf_calc_index_bound(), resulting in denial of service crashes and potential memory disclosure.
Affected products
- jkuhlmann cgltf: through 1.15.0
References
- https://github.com/jkuhlmann/cgltf/issues/287
- https://github.com/jkuhlmann/cgltf/pull/293
- https://www.vulncheck.com/advisories/jkuhlmann-cgltf-sparse-accessor-validation-integer-overflow
- https://github.com/jkuhlmann/cgltf/issues/287
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