CVE-2026-112018

cgltf through 1.15 Heap Out-of-Bounds Write via cgltf_accessor_unpack_floats()

Published Oct 18, 2026 CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
Description
cgltf through 1.15 contains a heap out-of-bounds write vulnerability in cgltf_accessor_unpack_floats() that allows attackers to write outside the output buffer via unchecked sparse accessor indices. Attackers can supply a crafted glTF or GLB file with large sparse indices to corrupt heap memory, crash applications, and potentially execute code when cgltf_validate() is not called.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Jkuhlmann
Jkuhlmann cgltf
Vendors & Products Jkuhlmann
Jkuhlmann cgltf
Type Values Removed Values Added
Description cgltf through 1.15 contains a heap out-of-bounds write vulnerability in cgltf_accessor_unpack_floats() that allows attackers to write outside the output buffer via unchecked sparse accessor indices. Attackers can supply a crafted glTF or GLB file with large sparse indices to corrupt heap memory, crash applications, and potentially execute code when cgltf_validate() is not called.
Title cgltf through 1.15 Heap Out-of-Bounds Write via cgltf_accessor_unpack_floats()
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 19, 2026, 6:36 PM
Reserved
Oct 18, 2026, 1:24 AM
Status
Deferred
Published
Oct 18, 2026, 12:17 PM
Modified
Oct 19, 2026, 7:17 PM