CVE-2026-55832
Tract: Arbitrary file read via unsanitized ONNX external_data `location` (path traversal) on model load in tract-onnx
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Tract is a tiny, no-nonsense, self-contained TensorFlow and ONNX inference toolkit. Prior to 0.21.17, 0.22.3, and 0.23.2, the tract-onnx crate passes the attacker-controlled external_data location from an ONNX model through onnx/src/tensor.rs get_external_resources and joins the value to the model directory without rejecting absolute paths or parent directory components. Loading an untrusted model through model_for_path can therefore make onnx/src/data_resolver.rs MmapDataResolver open an arbitrary local file and place the file contents into model tensors or inference output. Attacker-controlled offset and length fields can also select an out-of-range mapping slice and cause a denial of service, but the flaw does not write files or execute code. This issue is fixed in versions 0.21.17, 0.22.3, and 0.23.2.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L |
| NVDNVD · Deferred | 3.1 | Medium6.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L |
- EPSS (exploitation in 30 days)
- 0.19% · top 91% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- crates.iotract-onnxGHSA-h668-6x6g-f8r5 (opens in a new tab)
References (7)
- https://github.com/sonos/tract/security/advisories/GHSA-h668-6x6g-f8r5 (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/sonos/tract/commit/5f994bcf3cec9b343830a975fedce177f9190d0f (opens in a new tab)x_refsource_MISC
- https://github.com/sonos/tract/commit/85f4fac23e43d417782e8ed9f9465be8474f5c98 (opens in a new tab)x_refsource_MISC
- https://github.com/sonos/tract/commit/8fdacbd7abe4e6f929cadfe52e7f69e2227c0632 (opens in a new tab)x_refsource_MISC
- https://github.com/sonos/tract/releases/tag/0.21.17 (opens in a new tab)x_refsource_MISC
- https://github.com/sonos/tract/releases/tag/0.22.3 (opens in a new tab)x_refsource_MISC
- https://github.com/sonos/tract/releases/tag/v0.23.2 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-h668-6x6g-f8r5 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-55832)Record last updated .