{"id":"CVE-2026-68770","title":"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, wher…","summary":"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, wher…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-94","CWE-454"],"vendor":"Hugging Face","product":"sentence-transformers","affected":["sentence-transformers <= 5.5.1"],"patched":["sentence-transformers 5.6.0"],"published":"2026-07-31","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:17:33.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68770","references":[{"url":"https://github.com/huggingface/sentence-transformers","label":"disclosure@vulncheck.com"},{"url":"https://github.com/huggingface/sentence-transformers/commit/ae1acc3fb2aa2004577b297eb4a915ce7a03316a","label":"disclosure@vulncheck.com"},{"url":"https://github.com/huggingface/sentence-transformers/issues/3801","label":"disclosure@vulncheck.com"},{"url":"https://github.com/huggingface/sentence-transformers/pull/3807","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/sentence-transformers-arbitrary-code-execution-on-local-model-load-despite-trust-remote-code-false","label":"disclosure@vulncheck.com"},{"url":"https://github.com/huggingface/sentence-transformers/issues/3801","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68770"},{"url":"https://github.com/huggingface/sentence-transformers/pull/3935"},{"url":"https://github.com/huggingface/sentence-transformers/commit/626eb602b088878a8173bcab69225f68411b99e1"},{"url":"https://github.com/huggingface/sentence-transformers/releases/tag/v5.6.0"},{"url":"https://github.com/huggingface/sentence-transformers/releases/tag/v6.0.0"},{"url":"https://github.com/advisories/GHSA-jhr6-gm9c-rqjv"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68770.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-68770"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2509932"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68770"},{"url":"https://access.redhat.com/errata/RHSA-2026:73987"},{"url":"https://pypi.org/project/sentence-transformers"},{"url":"https://access.redhat.com/errata/RHSA-2026:84734"}],"tags":["nvd","cve.org","exploit-available","ghsa","pip","osv","csaf","vex","red-hat","score-dispute"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-08-03T18:15:42.984440Z"},"epss":0.00909,"epssPercentile":0.59771,"aliases":["GHSA-jhr6-gm9c-rqjv","PYSEC-2026-4164"],"ecosystem":"pip","scores":{"nvd":9.8,"vendor":7.4,"osv":9.8},"ingestedAt":"2026-09-09T21:22:45.520Z","slug":"CVE-2026-68770","body":"## Overview\n\nsentence-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-68770)\n\nAffected packages:\n\n- `sentence-transformers < 5.6.0`\n\nPatched in:\n\n- `sentence-transformers 5.6.0`\n\nSource: https://github.com/advisories/GHSA-jhr6-gm9c-rqjv\n\n## Vendor advisories\n\n- **RHSA-2026:73987** · Red Hat · fixed in: Red Hat OpenShift AI 3.3 · released 2026-09-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:73987)\n- **Red Hat VEX** · Important · affected: Lightspeed Core, OpenShift Lightspeed, Red Hat Ansible Automation Platform 2, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI) · no fix planned: Red Hat Ansible Automation Platform 2, Red Hat Enterprise Linux AI (RHEL AI) 3, Lightspeed Core, OpenShift Lightspeed, … · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68770.json)\n- **RHSA-2026:84734** · Red Hat · fixed in: Red Hat OpenShift AI 3.4 · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84734)","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":210265,"id":"CVE-2026-68770","ts":1790264827630,"field":"exploit_available","old":"false","new":"true"}]}