{"id":"CVE-2026-55093","sourceIdentifier":"security-advisories@github.com","published":"2026-09-14T20:16:47.290","lastModified":"2026-09-30T17:51:56.193","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Tract is a tiny, no-nonsense, self-contained TensorFlow and ONNX inference toolkit. Prior to 0.21.16, 0.22.2, and 0.23.1, tract-nnef uses unchecked usize multiplication in nnef/src/tensors.rs read_tensor for attacker-controlled tensor dimensions, the allocation size, and the reported tensor length. Loading a crafted NNEF archive through model_for_path or model_for_read reaches the default DatLoader and can make the wrapped size check accept a small allocation while data/src/tensor.rs as_slice_unchecked creates a much larger logical slice. Model construction through as_uniform can then read beyond the heap allocation and disclose adjacent data, and later access can terminate the process with a segmentation fault. The affected dense numeric tensor path does not include the independently guarded bool, String, or block-quant paths, and no out-of-bounds write or code execution was demonstrated. This issue is fixed in versions 0.21.16, 0.22.2, and 0.23.1."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"sonos","product":"tract","versions":[{"version":"< 0.21.16","status":"affected"},{"version":">= 0.22.0, < 0.22.2","status":"affected"},{"version":">= 0.23.0, < 0.23.1","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":4.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-14T20:09:04.689487Z","id":"CVE-2026-55093","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-125"},{"lang":"en","value":"CWE-190"}]}],"references":[{"url":"https://github.com/sonos/tract/commit/34c7df2c9bd2a36583e09b52f3e6319bf23102e8","source":"security-advisories@github.com"},{"url":"https://github.com/sonos/tract/commit/828ec20f74c14c0923c7d7f0cff062ed222d630a","source":"security-advisories@github.com"},{"url":"https://github.com/sonos/tract/commit/ee5f019d39fb97f7d4431b883c3ce97b74c28a64","source":"security-advisories@github.com"},{"url":"https://github.com/sonos/tract/releases/tag/0.21.16","source":"security-advisories@github.com"},{"url":"https://github.com/sonos/tract/releases/tag/0.22.2","source":"security-advisories@github.com"},{"url":"https://github.com/sonos/tract/releases/tag/v0.23.1","source":"security-advisories@github.com"},{"url":"https://github.com/sonos/tract/security/advisories/GHSA-x5mv-8wgw-29hg","source":"security-advisories@github.com"},{"url":"https://github.com/sonos/tract/security/advisories/GHSA-x5mv-8wgw-29hg","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}