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.
References (6)
Core 6
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/onnx/onnx/security/advisories/GHSA-3r9x-f23j-gc73
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:24977
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-27489
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2453929
X_Refsource_Misc x_refsource_misc
https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cb
Scores
CVSS v3
7.5
EPSS
0.0059
EPSS Percentile
45.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-22
CWE-23
CWE-61
Status
published
Products (3)
linuxfoundation/onnx
< 1.21.0
onnx/onnx
< 1.21.0
pypi/onnx
0 - 1.21.0PyPI
Published
Apr 01, 2026
Tracked Since
Apr 01, 2026