Heap disclosure and crash via unchecked SDNA index
Published Jul 13, 2026 · Updated Jul 13, 2026
Out-of-bounds read in Blender 3.0.0 through 5.1.2 allows attackers to crash the application or read adjacent heap memory via a crafted .blend file. The sdna_expand_names() function uses the signed member_index field from the file as an index into sdna->members[] without checking the allocated range, then passes the resulting invalid pointer to strlen(). Opening or processing the crafted file is required; exploitation causes a SIGSEGV crash or disclosure of adjacent heap contents without modifying data.
Summary
What happened
Out-of-bounds read in Blender 3.0.0 through 5.1.2 allows attackers to crash the application or read adjacent heap memory via a crafted .blend file. The sdna_expand_names() function uses the signed member_index field from the file as an index into sdna->members[] without checking the allocated range, then passes the resulting invalid pointer to strlen(). Opening or processing the crafted file is required; exploitation causes a SIGSEGV crash or disclosure of adjacent heap contents without modifying data.
The record
- CVE
- CVE-2026-60103
- Published
- Jul 13, 2026
- Updated
- Jul 13, 2026
- Vendor
- Blender Foundation
- Product
- Blender
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 13, 2026CVE publishedPublication date reported by the CVE source.
- Jul 13, 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=3.0.0 <=5.1.2
What conditions does exploitation require?
What is affected?
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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