Blender 3.0.0 - 5.1.2 Out-of-Bounds Read via crafted .blend SDNA block
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Blender 3.0.0 through 5.1.2 contains an out-of-bounds read vulnerability that allows attackers to trigger a crash or read adjacent heap memory by supplying a crafted .blend file with a malicious signed short member_index value in the SDNA block. The member_index field is used as an array index into the sdna->members[] array in sdna_expand_names() without bounds validation, allowing any value outside the allocated range to produce an invalid pointer subsequently passed to strlen(), resulting in a SIGSEGV crash or unintended heap memory disclosure.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-60103
- 2026-10-03 Alias added: GHSA-m48f-fh37-4jc6
References
Patch 1
Other 1
More Blender vulnerabilities
- TI-2009-03658 Blender 2.34, 2.35a, 2.40, and 2.49b allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 9.3
- TI-2007-01216 Eval injection vulnerability in the (a) kmz_ImportWithMesh.py Script for Blender 0.1.9h… CVSS 2.0HIGH 9.3
- TI-2005-03127 Eval injection vulnerability in bvh_import.py in Blender 2.36 allows attackers to execute… CVSS 3.1HIGH 7.3
- TI-2005-04213 Heap-based buffer overflow in the get_bhead function in readfile.c in Blender BlenLoader… CVSS 2.0HIGH 7.5
- TI-2017-02138 Integer overflow in Blender CVSS 3.1HIGH 7.8
- TI-2005-02979 Buffer overflow in blenderplay in Blender Player 2.37a allows attackers to execute… CVSS 2.0HIGH 7.5
Sources
- CVE-2026-60103 · CVE Program
- CVE-2026-60103 · NVD
- FIRST EPSS
- GHSA-m48f-fh37-4jc6 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-60103 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences