Tract: Arbitrary file read via unsanitized ONNX external_data `location` (path traversal) on model load in tract-onnx

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55832
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-14 18:17:55 UTC
Updated2026-09-14 19:17:32 UTC
DescriptionTract 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L

Problem Types: CWE-22 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
3.1CNADECLARED6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
Low

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Sonos Tract affected < 0.21.17 Not specified
CNA Sonos Tract affected >= 0.22.0, < 0.22.3 Not specified
CNA Sonos Tract affected >= 0.23.0, < 0.23.2 Not specified

References

ReferenceSourceLinkTags
github.com/sonos/tract/security/advisories/GHSA-h668-6x6g-f8r5 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/sonos/tract/commit/85f4fac23e43d417782e8ed9f9465be8474f5c98 [email protected] github.com
github.com/sonos/tract/releases/tag/v0.23.2 [email protected] github.com
github.com/sonos/tract/releases/tag/0.22.3 [email protected] github.com
github.com/sonos/tract/commit/5f994bcf3cec9b343830a975fedce177f9190d0f [email protected] github.com
github.com/sonos/tract/commit/8fdacbd7abe4e6f929cadfe52e7f69e2227c0632 [email protected] github.com
github.com/sonos/tract/releases/tag/0.21.17 [email protected] github.com
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