CVE-2026-34446Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability.
Updated under an hour ago ()
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It affects linuxfoundation onnx. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Open Neural Network Exchange (ONNX) is an open standard for machine learning interoperability. Prior to version 1.21.0, there is an issue in onnx.load, the code checks for symlinks to prevent path traversal, but completely misses hardlinks because a hardlink looks exactly like a regular file on the filesystem. This issue has been patched in version 1.21.0.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-22, CWE-61
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linuxfoundation onnx linuxfoundation:onnx | before 1.21.0 | NVD |
References
- https://github.com/onnx/onnx/commit/4755f8053928dce18a61db8fec71b69c74f786cbpatch
- https://github.com/onnx/onnx/security/advisories/GHSA-cmw6-hcpp-c6jpvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.