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  4. CVE 2026 129478 assimp through 606 heap out of bounds read via
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Back to active CVEs
Medium · CVSS 6.9CVE-2026-129478

Assimp through 6.0.6 Heap Out-of-Bounds Read via glTF ParseDataURICVE-2026-129478

Answer in brief

CVE-2026-129478 records a Medium severity (CVSS 6.9) vulnerability in Assimp through 6.0.6 Heap Out-of-Bounds Read via glTF ParseDataURI. The current sources do not mark it as known exploited. The current feed maps assimp/assimp (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 15, 2026Updated Nov 15, 2026Source checked Nov 15, 2026First seen by HOL Nov 15, 2026Material review Nov 15, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps assimp/assimp (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
assimp/assimpgeneric>=0 <=6.0.6Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for assimp/assimp.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 15, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Assimp through 6.0.6 Path Traversal via glTF External Buffer URIsSame assimp/assimp package
  • Assimp through 6.0.6 Integer Overflow via OgreBinarySerializer::ReadSubMeshSame assimp/assimp package
  • Assimp through 6.0.6 Heap Out-of-Bounds Read via MD2 Importer frameSizeSame assimp/assimp package

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Nov 15, 2026
References
4 linked sources
Open source record