CVE-2026-75148

cgltf 1.15 Integer Overflow via cgltf_validate() Accessor Bounds Check

State
Published
Severity
6.9 Medium
Published
Aug 19, 2026
Updated
Aug 21, 2026
Reserved
Aug 17, 2026

Read the record on cve.org

Description

cgltf through 1.15 contains an integer overflow vulnerability in the non-sparse accessor bounds check within cgltf_validate() that allows remote attackers to cause memory disclosure and denial of service by supplying crafted accessor count values. Attackers can provide malformed .gltf or .glb input with a specially crafted accessor count to overflow the unsigned integer multiplication of accessor stride and element count, causing the bounds check to pass and triggering a heap out-of-bounds read when cgltf_accessor_read_float() is subsequently called on the validated malformed accessor.

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:NVulnCheck
3.16.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:HVulnCheck

Weaknesses

  • CWE-190 Integer Overflow or Wraparound

Affected Products

ProductVersions
cgltfjkuhlmann
  • 1.15 and earlierAffected

References

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