cgltf through 1.15 contains a heap out-of-bounds read vulnerability in cgltf_accessor_unpack_floats() that advances the sparse values cursor by the base bufferView byteStride. Attackers can supply a crafted glTF or GLB file that passes cgltf_validate() to read adjacent heap memory into vertex data or crash applications.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
jkuhlmann cgltf unaffected
Version Status Constraints
0 affected ≤ 1.15

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/jkuhlmann/cgltf cve-icon cve-icon
https://github.com/jkuhlmann/cgltf/blob/360db1a95480fe102ae9c69b27c5d101167ff5ba/cgltf.h#L1612-L1619 cve-icon cve-icon
https://github.com/jkuhlmann/cgltf/blob/360db1a95480fe102ae9c69b27c5d101167ff5ba/cgltf.h#L2436-L2441 cve-icon cve-icon
https://hackmd.io/@haindpwn/cgltf-accessor-unpack-floats-sparse-oob cve-icon cve-icon
https://www.vulncheck.com/advisories/cgltf-through-1.15-heap-out-of-bounds-read-via-cgltf-accessor-unpack-floats cve-icon cve-icon
History

Sun, 18 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description cgltf through 1.15 contains a heap out-of-bounds read vulnerability in cgltf_accessor_unpack_floats() that advances the sparse values cursor by the base bufferView byteStride. Attackers can supply a crafted glTF or GLB file that passes cgltf_validate() to read adjacent heap memory into vertex data or crash applications.
Title cgltf through 1.15 Heap Out-of-Bounds Read via cgltf_accessor_unpack_floats()
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-18T11:38:39.224Z

Reserved: 2026-10-18T01:24:55.584Z

Link: CVE-2026-112019

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-18T12:17:14.910

Modified: 2026-10-18T12:17:15.020

Link: CVE-2026-112019

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-18T12:45:01Z

Weaknesses