Vulnerability · Published Jul 13, 2026 · Assigned by VulnCheck

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

Medium 6.1

In plain English

A medium-severity out-of-bounds read in blender from blender. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.2%top 93.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	blender	no fix listed	DEBIAN-CVE-2026-60103
Debian:13	blender	no fix listed	DEBIAN-CVE-2026-60103
Ubuntu:22.04:LTS	blender	no fix listed	UBUNTU-CVE-2026-60103
Ubuntu:24.04:LTS	blender	no fix listed	UBUNTU-CVE-2026-60103
Ubuntu:26.04:LTS	blender	no fix listed	UBUNTU-CVE-2026-60103
Ubuntu:26.10	blender	no fix listed	UBUNTU-CVE-2026-60103

Affected products (as reported)

Vendor	Product	Versions
blender	blender	3.0.0 – through 5.1.2

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

References

Pull Request issue-tracking
Patch Commit patch
https://www.vulncheck.com/advisories/blender-out-of-bounds-read-via-crafted-blend-sdna-block third-party-advisory