{"id":"CVE-2026-55832","state":"PUBLISHED","title":"Tract: Arbitrary file read via unsanitized ONNX external_data `location` (path traversal) on model load in tract-onnx","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.","publishedAt":"2026-09-14T17:57:41.374Z","updatedAt":"2026-09-14T18:12:59.928Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["sonos tract"],"affected":[{"vendor":"sonos","product":"tract","versions":[{"version":"< 0.21.17","status":"affected"},{"version":">= 0.22.0, < 0.22.3","status":"affected"},{"version":">= 0.23.0, < 0.23.2","status":"affected"}]}],"references":["https://github.com/sonos/tract/security/advisories/GHSA-h668-6x6g-f8r5","https://github.com/sonos/tract/commit/5f994bcf3cec9b343830a975fedce177f9190d0f","https://github.com/sonos/tract/commit/85f4fac23e43d417782e8ed9f9465be8474f5c98","https://github.com/sonos/tract/commit/8fdacbd7abe4e6f929cadfe52e7f69e2227c0632","https://github.com/sonos/tract/releases/tag/0.21.17","https://github.com/sonos/tract/releases/tag/0.22.3","https://github.com/sonos/tract/releases/tag/v0.23.2"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55832.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55832","state":"PUBLISHED","datePublished":"2026-09-14T17:57:41.374Z","dateUpdated":"2026-09-14T18:12:59.928Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-17T16:29:38.864Z"},"containers":{"cna":{"title":"Tract: Arbitrary file read via unsanitized ONNX external_data `location` (path traversal) on model load in tract-onnx","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"sonos","product":"tract","versions":[{"version":"< 0.21.17","status":"affected"},{"version":">= 0.22.0, < 0.22.3","status":"affected"},{"version":">= 0.23.0, < 0.23.2","status":"affected"}]}],"references":[{"url":"https://github.com/sonos/tract/security/advisories/GHSA-h668-6x6g-f8r5","name":"https://github.com/sonos/tract/security/advisories/GHSA-h668-6x6g-f8r5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/sonos/tract/commit/5f994bcf3cec9b343830a975fedce177f9190d0f","name":"https://github.com/sonos/tract/commit/5f994bcf3cec9b343830a975fedce177f9190d0f","tags":["x_refsource_MISC"]},{"url":"https://github.com/sonos/tract/commit/85f4fac23e43d417782e8ed9f9465be8474f5c98","name":"https://github.com/sonos/tract/commit/85f4fac23e43d417782e8ed9f9465be8474f5c98","tags":["x_refsource_MISC"]},{"url":"https://github.com/sonos/tract/commit/8fdacbd7abe4e6f929cadfe52e7f69e2227c0632","name":"https://github.com/sonos/tract/commit/8fdacbd7abe4e6f929cadfe52e7f69e2227c0632","tags":["x_refsource_MISC"]},{"url":"https://github.com/sonos/tract/releases/tag/0.21.17","name":"https://github.com/sonos/tract/releases/tag/0.21.17","tags":["x_refsource_MISC"]},{"url":"https://github.com/sonos/tract/releases/tag/0.22.3","name":"https://github.com/sonos/tract/releases/tag/0.22.3","tags":["x_refsource_MISC"]},{"url":"https://github.com/sonos/tract/releases/tag/v0.23.2","name":"https://github.com/sonos/tract/releases/tag/v0.23.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-14T17:57:41.374Z"},"source":{"advisory":"GHSA-h668-6x6g-f8r5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/sonos/tract/security/advisories/GHSA-h668-6x6g-f8r5","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T18:12:49.766808Z","id":"CVE-2026-55832","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T18:12:59.928Z"}}]}}}