Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://projects.blender.org/blender/blender
- https://projects.blender.org/blender/blender/commit/495deb9efff880c42aa88110aec0
- https://projects.blender.org/blender/blender/commit/7de4986e74ed47f67e78eb4b7660
- https://projects.blender.org/blender/blender/commit/94d99b362b0d236dcf07a96c1c8f
- https://projects.blender.org/blender/blender/commit/c5d6faf04bf3f17efb6c404896ef
- https://projects.blender.org/blender/blender/pulls/164279
- https://www.vulncheck.com/advisories/blender-before-4.5.15-and-5-x-before-5.2.3-
FAQ
What is CVE-2026-119721?
CVE-2026-119721 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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...
How severe is CVE-2026-119721?
CVE-2026-119721 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119721?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.