CVE-2026-112018CWE-787

CVE-2026-112018

High · published October 18, 2026

CVSS v3.1
7.0
EPSS
0%
Percentile
2.2
In the wild
Unconfirmed
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, and potentially execute code when cgltf_validate() is not called.

The record
Technical detail
CVSS v3.1
7.0 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
7.3 · CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00127 · 2.2th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-10-18T16:17Z
References (5)
https://github.com/jkuhlmann/cgltf · [email protected]https://github.com/jkuhlmann/cgltf/blob/360db1a95480fe102ae9c69b27c5d101167ff5ba/cgltf.h#L2436-L2441 · [email protected]https://hackmd.io/@haindpwn/cgltf-accessor-unpack-floats-sparse-oob · [email protected]https://www.vulncheck.com/advisories/cgltf-through-1.15-heap-out-of-bounds-write-via-cgltf-accessor-unpack-floats · [email protected]https://hackmd.io/@haindpwn/cve-2026-112018-112019-cgltf-accessor-unpack-floats-sparse-oob · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 20 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 18 OCT 11:38Z
    cgltf through 1.15 Heap Out-of-Bounds Write via cgltf_accessor_unpack_floats()
    cvelistv5
  • 18 OCT 11:38Z
    cgltf through 1.15 Heap Out-of-Bounds Write via cgltf_accessor_unpack_floats()
    cvelistv5