TI-2026-56933 Aliases CVE-2026-82591 GHSA-4pff-rvgp-gggv

Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow

LOW 21CWE-119Published 2026-08-30 · Updated 2026-08-31

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00172 6th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Open Asset Import Library	Assimp	6.0.0; 6.0.1; 6.0.2	—	No fix listed	CNA

Assimp VendorOpen Asset Import Library Affected 6.0.0; 6.0.1; 6.0.2 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:assimp:assimp::::::::	—	—	Open Asset Import Library

cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:* Versions — — ·Open Asset Import Library

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-82591
2026-10-03 Alias added: GHSA-4pff-rvgp-gggv

References

Patch 2

TI-2022-22579 An issue was discovered with assimp 5.1.4, a use after free occurred in function… CVSS 3.1HIGH 8.8
TI-2024-32382 An issue in assimp v.5.4.3 allows a local attacker to execute arbitrary code via the… CVSS 3.1HIGH 8.4
TI-2026-74913 NULL pointer dereference in Assimp Ogre mesh import crashes host CVSS 4.0MEDIUM 6.8
TI-2026-74912 NULL pointer dereference in Assimp Ogre importer crashes applications CVSS 4.0MEDIUM 6.8
TI-2024-35797 A heap-buffer-overflow vulnerability was discovered in the SkipSpacesAndLineEnd function… CVSS 3.1MEDIUM 6.2
TI-2024-32385 A segmentation fault (SEGV) was detected in the SortByPTypeProcess::Execute function in… CVSS 3.1MEDIUM 6.2

See all 58 →

Sources

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