CVE-2026-112018cgltf through 1.15 Heap Out-of-Bounds Write via cgltf_accessor_unpack_floats()
Updated under an hour ago ()
Does this affect you?
It affects jkuhlmann cgltf. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
jkuhlmann cgltf jkuhlmann:cgltf (from the name) | through 1.15 | CNA record |
References
- https://hackmd.io/@haindpwn/cgltf-accessor-unpack-floats-sparse-oobtechnical-description
- https://github.com/jkuhlmann/cgltf/blob/360db1a95480fe102ae9c69b27c5d101167ff5ba/cgltf.h#L2436-L2441technical-description
- https://github.com/jkuhlmann/cgltfproduct
- https://www.vulncheck.com/advisories/cgltf-through-1.15-heap-out-of-bounds-write-via-cgltf-accessor-unpack-floatsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.