CVE-2026-129478

CVSS 6.9 (medium) · published 2026-11-15

Assimp through 6.0.6 contains a heap out-of-bounds read vulnerability in glTFCommon::Util::ParseDataURI caused by storing the data offset in a signed char. Attackers can supply a crafted glTF file with a raw data URI whose segment starts beyond byte 127 to crash applications or leak adjacent heap memory.

Weakness: CWE-125

Source: NVD CVE-2026-129478

References

• https://github.com/assimp/assimp/blob/v6.0.6/code/AssetLib/glTFCommon/glTFCommon.cpp#L86-L105
• https://github.com/assimp/assimp/issues/6927
• https://github.com/assimp/assimp/pull/7029
• https://www.vulncheck.com/advisories/assimp-through-6.0.6-heap-out-of-bounds-read-via-gltf-parsedatauri

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