{"cve":"CVE-2026-55093","nvd":{"published":"2026-09-14T20:16:47.290","modified":"2026-09-30T17:51:56.193","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","score":6.1},"cwes":["CWE-125","CWE-190"],"references":["https://github.com/sonos/tract/commit/34c7df2c9bd2a36583e09b52f3e6319bf23102e8","https://github.com/sonos/tract/commit/828ec20f74c14c0923c7d7f0cff062ed222d630a","https://github.com/sonos/tract/commit/ee5f019d39fb97f7d4431b883c3ce97b74c28a64","https://github.com/sonos/tract/releases/tag/0.21.16","https://github.com/sonos/tract/releases/tag/0.22.2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-55093","score":0.00181,"percentile":0.07616,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-x5mv-8wgw-29hg","url":"https://osv.dev/vulnerability/GHSA-x5mv-8wgw-29hg","summary":"tract-nnef: integer overflow in NNEF `.dat` tensor parser yields an out-of-bounds read on model load","modified":"2026-09-10T03:50:51.193874173Z","packages":[{"ecosystem":"crates.io","name":"tract-nnef","purl":"pkg:cargo/tract-nnef","ranges":[">=0.23.0 <0.23.1"],"fixed":["0.23.1"]},{"ecosystem":"crates.io","name":"tract-nnef","purl":"pkg:cargo/tract-nnef","ranges":[">=0.22.0 <0.22.2"],"fixed":["0.22.2"]},{"ecosystem":"crates.io","name":"tract-nnef","purl":"pkg:cargo/tract-nnef","ranges":["<0.21.16"],"fixed":["0.21.16"]}]},{"id":"RUSTSEC-2026-0217","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0217","summary":"Integer overflow in tract-nnef NNEF tensor parser leads to out-of-bounds read on model load","modified":"2026-10-12T18:00:14.308668573Z","packages":[{"ecosystem":"crates.io","name":"tract-nnef","purl":"pkg:cargo/tract-nnef","ranges":[">=0.0.0-0 <0.21.16",">=0.22.0 <0.22.2",">=0.23.0 <0.23.1"],"fixed":["0.21.16","0.22.2","0.23.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}