CVE-2026-112019

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

20 Oct 2026, 18:17

Type	Values Removed	Values Added
References	~~() https://hackmd.io/@haindpwn/cgltf-accessor-unpack-floats-sparse-oob -~~	() https://hackmd.io/@haindpwn/cgltf-accessor-unpack-floats-sparse-oob -

18 Oct 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-18 12:17

Updated : 2026-10-20 18:17

NVD link : CVE-2026-112019

Mitre link : CVE-2026-112019

CVE.ORG link : CVE-2026-112019

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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