CVE-2026-112018
cgltf through 1.15 contains a heap out-of-bounds write vulnerability in…
- Risk score
- 42/100
- CVSS
- 7.0 v3.1
- Exploit chance (30 days)
- 0.1%
- Published
- 18 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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, an…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.0 high
References
- https://github.com/jkuhlmann/cgltf
- 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-write-via-cgltf-accessor-unpack-floats
- https://hackmd.io/@haindpwn/cve-2026-112018-112019-cgltf-accessor-unpack-floats-sparse-oob
Original 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.
Last activity 18 Oct 2026. Patch Forecast updates every hour.