CVE-2026-119721
Blender before 4.5.15 and 5.x before 5.2.3 Out-of-Bounds Read via blo_bhead_id Accessors
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Description
Blender before 4.5.15 and 5.x before 5.2.3 contains an out-of-bounds read vulnerability in blo_bhead_id_* accessors in readfile.cc that read ID fields without block length checks. Attackers can supply a crafted .blend file with short ID blocks that, when browsed or appended from, causes heap over-reads leading to crashes or heap memory disclosure.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://projects.blender.org/blender/blender/pulls/164279
- https://projects.blender.org/blender/blender/commit/c5d6faf04bf3f17efb6c404896ef0e7427784da5
- https://projects.blender.org/blender/blender/commit/7de4986e74ed47f67e78eb4b76609bb6d1ae8a0e
- https://projects.blender.org/blender/blender/commit/495deb9efff880c42aa88110aec0ea2c0fb1eb07
- https://projects.blender.org/blender/blender/commit/94d99b362b0d236dcf07a96c1c8f9f5389d0583c
References (7)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- HIGH
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