Vulnerability details
CVE-2026-27489
ONNX ONNXRed Hat OpenShift AI
ONNX: Path Traversal via Symlink
CVSS 4.0
8.7High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| 8.6High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| ONNX | ONNX | < 1.21.0 | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat OpenShift AI (RHOAI) | All | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73 x_refsource_CONFIRM
- https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2026-27489 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2453929 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27489.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:24977 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-04-01
- Last updated
- 2026-07-15
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.61%
Probability of exploitation in 30 days
49.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-23Relative Path Traversal
- CWE-61UNIX Symbolic Link (Symlink) Following
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')