CVE-2026-60103: Blender 3.0.0 - 5.1.2 Out-of-Bounds Read via crafted .blend SDNA block

Vulnerability summary

CVE-2026-60103 is a medium (CVSS 6.8) Out-of-bounds Read vulnerability in blender. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% of scored vulnerabilities.

Timeline

1. 13-07-2026
   PublishedVulnerability first disclosed.
2. 15-07-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.