CVE-2026-10230: Assimp Half-Life 1 MDL Loader HL1MDLLoader.cpp read_animations heap-based overflow

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-119

Description

A vulnerability was identified in Assimp up to 6.0.4. This impacts the function Assimp::MDL::HalfLife::HL1MDLLoader::read_animations of the file HL1MDLLoader.cpp of the component Half-Life 1 MDL Loader. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The project tagged the reported issue as bug.

Affected products

Assimp: 6.0.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4

References

https://github.com/assimp/assimp/
https://github.com/assimp/assimp/issues/6615
https://vuldb.com/cve/CVE-2026-10230
https://vuldb.com/submit/821190
https://vuldb.com/vuln/367509
https://vuldb.com/vuln/367509/cti

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