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.

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History

Mon, 23 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 23 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
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.
Title jkuhlmann / cgltf <= 1.15 Sparse Accessor Validation Integer Overflow
Weaknesses CWE-190
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-23T18:37:02.382Z

Reserved: 2026-03-16T18:11:41.758Z

Link: CVE-2026-32845

cve-icon Vulnrichment

Updated: 2026-03-23T17:11:44.957Z

cve-icon NVD

Status : Received

Published: 2026-03-23T16:16:48.583

Modified: 2026-03-23T18:16:26.013

Link: CVE-2026-32845

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses