CVE Tools
Sign in

CVE-2026-27489

ONNX: Path Traversal via Symlink

Published: Apr 1, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-23
7.5HIGH
NVD MITRE
EPSS Score
0.6%
Top 54.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-23CWE-61CWE-22

Affected Products

onnx
oss-projectaka onnx-mlir
onnxLibrary
AI / ML / ml-framework
linuxfoundation
oss-project·USaka pytorch, everest, yocto
onnxLibraryLibrary
AI / ML / ml-framework

Exploitability

Official Patch Available
Workaround Available
Is your org exposed to CVE-2026-27489?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73
github.com
https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb
github.com
https://access.redhat.com/errata/RHSA-2026:24977
access.redhat.com
and 3 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-27489 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows