Blender up to 4.5.14/5.2.2 ID Block Reader readfile.cc blo_bhead_id out-of-bounds

Summaryinfo

A vulnerability, which was classified as problematic, was found in Blender up to 4.5.14/5.2.2. Affected is the function blo_bhead_id of the file readfile.cc of the component ID Block Reader. The manipulation results in out-of-bounds. This vulnerability is identified as CVE-2026-119721. The attack is only possible with local access. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Blender up to 4.5.14/5.2.2. Affected is the function blo_bhead_id of the file readfile.cc of the component ID Block Reader. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at projects.blender.org. This vulnerability is traded as CVE-2026-119721 since 10/30/2026. The exploitability is told to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 4.5.15 or 5.2.3 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Blender

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5
• 4.5.6
• 4.5.7
• 4.5.8
• 4.5.9
• 4.5.10
• 4.5.11
• 4.5.12
• 4.5.13
• 4.5.14
• 5.2.0
• 5.2.1
• 5.2.2

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

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• 🔒
• 🔒

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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