{"cve":"CVE-2026-68770","nvd":{"published":"2026-07-31T21:17:32.440","modified":"2026-10-23T23:10:00.157","status":"Deferred","description":"sentence-transformers contains a security control bypass vulnerability that allows attackers to achieve arbitrary code execution by exploiting a logic flaw in the import_module_class helper within sentence_transformers/util/misc.py, where the guard condition includes an 'or os.path.exists(model_name_or_path)' clause that satisfies the trust gate whenever the supplied path exists on the local filesystem, regardless of the trust_remote_code=False argument. Attackers who can control or influence the contents of a model directory on disk can place malicious Python files such as modeling_*.py referenced via modules.json, causing the code to execute at import time when an application loads the model with SentenceTransformer(path, trust_remote_code=False), bypassing the documented security contract and achieving code execution within the loading process.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-94"],"references":["https://github.com/huggingface/sentence-transformers","https://github.com/huggingface/sentence-transformers/commit/ae1acc3fb2aa2004577b297eb4a915ce7a03316a","https://github.com/huggingface/sentence-transformers/issues/3801","https://github.com/huggingface/sentence-transformers/pull/3807","https://www.vulncheck.com/advisories/sentence-transformers-arbitrary-code-execution-on-local-model-load-despite-trust-remote-code-false"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-68770","score":0.00909,"percentile":0.59699,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-jhr6-gm9c-rqjv","url":"https://osv.dev/vulnerability/GHSA-jhr6-gm9c-rqjv","summary":"sentence-transformers local model loading bypasses trust_remote_code and executes custom Python","modified":"2026-10-01T17:55:41.036478465Z","packages":[{"ecosystem":"PyPI","name":"sentence-transformers","purl":"pkg:pypi/sentence-transformers","ranges":["<5.6.0"],"fixed":["5.6.0"]}]},{"id":"PYSEC-2026-4164","url":"https://osv.dev/vulnerability/PYSEC-2026-4164","summary":"sentence-transformers local model loading bypasses trust_remote_code and executes custom Python","modified":"2026-10-01T17:45:16.845967182Z","packages":[{"ecosystem":"PyPI","name":"sentence-transformers","purl":"pkg:pypi/sentence-transformers","ranges":["<5.6.0"],"fixed":["5.6.0"]}]}],"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."]}