CVE-2026-27489

Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, a path traversal vulnerability via symlink allows to read arbitrary files outside model or user-provided directory. This issue has been patched in version 1.21.0.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb	Patch
https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73	Exploit Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:onnx:*:*:*:*:*:*:*:*

History

07 Apr 2026, 20:22

Type	Values Removed	Values Added
CPE		cpe:2.3:a:linuxfoundation:onnx::::::::
First Time		Linuxfoundation Linuxfoundation onnx
References	~~() https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb -~~	() https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb - Patch
References	~~() https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73 -~~	() https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73 - Exploit, Mitigation, Patch, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

01 Apr 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-01 18:16

Updated : 2026-04-07 20:22

NVD link : CVE-2026-27489

Mitre link : CVE-2026-27489

CVE.ORG link : CVE-2026-27489

JSON object : View

Products Affected

linuxfoundation

onnx

CWE

CWE-23

Relative Path Traversal

CWE-61

UNIX Symbolic Link (Symlink) Following

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