CVE-2026-129478

Assimp through 6.0.6 Heap Out-of-Bounds Read via glTF ParseDataURI

Published Nov 15, 2026 CVSS 4.0 · 6.9 Medium EPSS n/a KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

assimp

unaffected

Version	Status	Constraints
`0`	affected	≤ 6.0.6

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
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

History

Nov 15, 2026 1:30 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		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.
Title		Assimp through 6.0.6 Heap Out-of-Bounds Read via glTF ParseDataURI
First Time appeared		Assimp Assimp assimp
Weaknesses		CWE-125
CPEs		cpe:2.3:a:assimp:assimp::::::::
Vendors & Products		Assimp Assimp assimp
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
Metrics		cvssV3_1 `{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}` cvssV4_0 `{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}`