CVE-2026-60103

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

Published Jul 13, 2026 CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed

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.

Analysis

Technical impact

A crafted .blend file can trigger an out‑of‑bounds read a crash or unintended exposure of adjacent heap memory. The vulnerability arises because the signed short member_index field is used as an array index without bounds validation on the intended array bounds. This results in a SIGSEGV crash or potential leakage of sensitive data from the heap, violating confidentiality and causing service interruption.

Affected Systems

Blender, versions 3.0.0 through 5.1.2, is affected. The problem only appears in releases that contain the vulnerable sdna_expand_names() implementation and is fixed in later releases.

Risk and Exploitability

The CVSS score of 6.8 indicates medium severity. The EPSS score of < 1% suggests a very low probability that the vulnerability will be exploited in the wild. The vulnerability is not listed in CISA's KEV catalog. The attack vector is most likely a local or user‑supplied file attack; a malicious .blend file opened in the vulnerable application triggers the flaw. No remote code execution is possible, but an attacker could cause a denial of service or read sensitive data fromtrusted file, the required conditions are relatively low, but the lack of a public exploit does not eliminate the risk.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

blender

affected

Version	Status	Constraints
`3.0.0`	affected	≤ 5.1.2
`968972a918b5ed2d534295b639c54449d7de11cd`	unaffected	—

No data.

Vendor Product Versions

Blender

Version	Status	Scheme	Platform
`[3.0.0,5.1.2]`	affected	semver	—
`968972a918b5ed2d534295b639c54449d7de11cd`	unaffected	code_commit	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade Blender to the latest stable release that includes the fix committed in 968972a918b5ed2d534295b639c54449d7de11cd.
Avoid opening unknown .blend files and restrict file owners to trusted users.
Run Blender within a restricted sandbox or container that limits access to system memory and prevents code execution if a crash occurs.

Generated by OpenCVE AI on July 31, 2026 at 11:28 UTC.

Tracking

Advisories

No advisories available

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.169% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://nvd.nist.gov/vuln/detail/CVE-2026-60103
https://projects.blender.org/blender/blender/commit/968972a918b5ed2d534295b639c54449d7de11cd
https://projects.blender.org/blender/blender/pulls/161273
https://www.cve.org/CVERecord?id=CVE-2026-60103
https://www.vulncheck.com/advisories/blender-out-of-bounds-read-via-crafted-blend-sdna-block

History

Jul 15, 2026 7:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Jul 14, 2026 10:30 PM Affected versions updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:blender:blender::::::::

Jul 14, 2026 12:15 AM Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
References		https://nvd.nist.gov/vuln/detail/CVE-2026-60103 https://www.cve.org/CVERecord?id=CVE-2026-60103
Metrics	threat_severity `None`	threat_severity `Moderate`

Jul 13, 2026 7:45 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Blender Blender blender
Vendors & Products		Blender Blender blender

Jul 13, 2026 6:00 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Title		Blender 3.0.0 - 5.1.2 Out-of-Bounds Read via crafted .blend SDNA block
Weaknesses		CWE-125
References		https://projects.blender.org/blender/blender/commit/968972a918b5ed2d534295b639c54449d7de11cd https://projects.blender.org/blender/blender/pulls/161273 https://www.vulncheck.com/advisories/blender-out-of-bounds-read-via-crafted-blend-sdna-block
Metrics		cvssV3_1 `{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}` cvssV4_0 `{'score': 6.8, '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'}`