CVE-2026-119718: Blender before 4.5.15 and 5.x before 5.2.3 Heap Buffer Overflow via Point Cache

Vulnerability summary

CVE-2026-119718 is a high (CVSS 8.5) Integer Overflow or Wraparound vulnerability in blender foundation blender. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 9.3% of scored vulnerabilities.

Timeline

1. 30-10-2026
   PublishedVulnerability first disclosed.
2. 30-10-2026
   Last modifiedVulnerability information updated.

Description

Blender before 4.5.15 and 5.x before 5.2.3 contains a heap buffer overflow vulnerability caused by integer overflow in ptcache_data_alloc() when reading point cache files. Attackers can supply a crafted point cache file with a large totpoint value alongside a .blend file to crash Blender or execute code as the user.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.