Local process memory corruption via malformed ASE tree
Published Jun 1, 2026 · Updated Jun 1, 2026
Use-after-free in Assimp 6.0.0 through 6.0.4 allows local users to crash an importing process with a malformed ASE file. The ASE importer's AddNodes routine shifts mChildren entries forward while inserting a .Target node, overwriting entries and constructing a tree with duplicated or missing child pointers. Recursive aiNode destruction then dereferences an object already freed through that malformed tree; exploitation requires a local process to import the crafted file and is demonstrated to terminate the process.
Summary
What happened
Use-after-free in Assimp 6.0.0 through 6.0.4 allows local users to crash an importing process with a malformed ASE file. The ASE importer's AddNodes routine shifts mChildren entries forward while inserting a .Target node, overwriting entries and constructing a tree with duplicated or missing child pointers. Recursive aiNode destruction then dereferences an object already freed through that malformed tree; exploitation requires a local process to import the crafted file and is demonstrated to terminate the process.
The record
- CVE
- CVE-2026-10232
- Published
- Jun 1, 2026
- Updated
- Jun 1, 2026
- Vendor
- Open Asset Import Library
- Product
- Assimp
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 1, 2026CVE publishedPublication date reported by the CVE source.
- Jun 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.0.0
- Affected versionversion=6.0.1
- Affected versionversion=6.0.2
- Affected versionversion=6.0.3
- Affected versionversion=6.0.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
- Upstream ASE heap-use-after-free reproducerproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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