CVE-2026-112019 cgltf through 1.15 Heap Out-of-Bounds Read via cgltf_accessor_unpack_floats()
Attackers can read adjacent heap memory or crash applications by supplying crafted glTF files to the cgltf library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112019?
CVE-2026-112019 is a medium-severity memory corruption vulnerability in jkuhlmann cgltf, published on 18 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-112019?
How do I fix CVE-2026-112019?
No fix has been published for CVE-2026-112019 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-112019 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112019 exists.
Sources
Also known as GHSA-wfq9-23x4-jh5f.