{"id":"CVE-2026-55093","revision":"92c35fe8459644ee88fb8b4a22c87c70","records":[{"revision":"92c35fe8459644ee88fb8b4a22c87c70","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-55093","aliases":[],"title":"tract-nnef: integer overflow in NNEF `.dat` tensor parser yields an out-of-bounds read on model load","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.","state":0,"publishedAt":"2026-09-14T19:47:46.877+00:00","modifiedAt":"2026-09-14T20:09:24.411+00:00","affected":[{"ecosystem":"Vendor product","name":"tract","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"sonos\",\n                    \"product\": \"tract\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.21.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 0.22.0, < 0.22.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 0.23.0, < 0.23.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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,"severity":"MEDIUM"}],"references":["https://github.com/sonos/tract/security/advisories/GHSA-x5mv-8wgw-29hg","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","https://github.com/sonos/tract/releases/tag/v0.23.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55093","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-55093","identifiers":["CVE-2026-55093"]},"retained":false,"historicalAffected":[]}],"coverage":[]}