GHSA-jhr6-gm9c-rqjv

Suggest an improvement
Source
https://github.com/advisories/GHSA-jhr6-gm9c-rqjv
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-jhr6-gm9c-rqjv/GHSA-jhr6-gm9c-rqjv.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-jhr6-gm9c-rqjv
Aliases
Published
2026-07-31T21:31:59Z
Modified
2026-09-30T23:30:05Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.3 (Critical) CVSS_V4 - 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 CVSS Calculator
Summary
sentence-transformers local model loading bypasses trust_remote_code and executes custom Python
Details

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.

Database specific 
{
    "cwe_ids":  [
        "CWE-94"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-09-30T23:24:22Z",
    "nvd_published_at":  "2026-07-31T21:17:32Z",
    "severity":  "CRITICAL"
}
References

Affected packages

PyPI / sentence-transformers

Package

Name
sentence-transformers
View open source insights on deps.dev
Purl
pkg:pypi/sentence-transformers

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.6.0

Affected versions

0.*
0.1.0
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.4.1
0.2.5
0.2.5.1
0.2.6
0.2.6.1
0.2.6.2
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.3.5.1
0.3.6
0.3.7
0.3.7.1
0.3.7.2
0.3.8
0.3.9
0.4.0
0.4.1
0.4.1.1
0.4.1.2
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.1.0
1.1.1
1.2.0
1.2.1
2.*
2.0.0
2.1.0
2.2.0
2.2.1
2.2.2
2.3.0
2.3.1
2.4.0
2.5.0
2.5.1
2.6.0
2.6.1
2.7.0
3.*
3.0.0
3.0.1
3.1.0
3.1.1
3.2.0
3.2.1
3.3.0
3.3.1
3.4.0
3.4.1
4.*
4.0.0
4.0.1
4.0.2
4.1.0
5.*
5.0.0
5.1.0
5.1.1
5.1.2
5.2.0
5.2.1
5.2.2
5.2.3
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-jhr6-gm9c-rqjv/GHSA-jhr6-gm9c-rqjv.json"