What is CVE-2026-68770?

CVE-2026-68770 is a critical-severity code injection vulnerability in sentence-transformers (pip), affecting versions < 5.6.0. It is fixed in 5.6.0. Untrusted input is evaluated as executable code within the application's runtime environment.

How severe is CVE-2026-68770?

CVE-2026-68770 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which versions of sentence-transformers are affected by CVE-2026-68770?

sentence-transformers (pip) versions < 5.6.0 is affected.

Is there a fix for CVE-2026-68770?

Yes. CVE-2026-68770 is fixed in 5.6.0. Upgrade to this version or later.

Is CVE-2026-68770 exploitable, and should I be worried?

Whether CVE-2026-68770 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether CVE-2026-68770 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

CVE-2026-68770 in sentence-transformers

Q: How severe is CVE-2026-68770?

CVE-2026-68770 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Q: Which versions of sentence-transformers are affected by CVE-2026-68770?

sentence-transformers (pip) versions < 5.6.0 is affected.

Q: Is there a fix for CVE-2026-68770?

Yes. CVE-2026-68770 is fixed in 5.6.0. Upgrade to this version or later.

Q: Is CVE-2026-68770 exploitable, and should I be worried?

Whether CVE-2026-68770 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether CVE-2026-68770 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix CVE-2026-68770?

Upgrade sentence-transformers to 5.6.0 or later.

Summary

sentence-transformers local model loading bypasses trustremotecode and executes custom Python

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.

Impact

Untrusted input is evaluated as executable code within the application's runtime environment. Typical impact: arbitrary code execution within the application's privilege context.

CVE-2026-68770 has a CVSS score of 9.8 (Critical). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (5.6.0); upgrading removes the vulnerable code path.

Affected versions

sentence-transformers (< 5.6.0)

Security releases

sentence-transformers → 5.6.0 (pip)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade sentence-transformers to 5.6.0 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2026-68770? CVE-2026-68770 is a critical-severity code injection vulnerability in sentence-transformers (pip), affecting versions < 5.6.0. It is fixed in 5.6.0. Untrusted input is evaluated as executable code within the application's runtime environment.
How severe is CVE-2026-68770? CVE-2026-68770 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Which versions of sentence-transformers are affected by CVE-2026-68770? sentence-transformers (pip) versions < 5.6.0 is affected.
Is there a fix for CVE-2026-68770? Yes. CVE-2026-68770 is fixed in 5.6.0. Upgrade to this version or later.
Is CVE-2026-68770 exploitable, and should I be worried? Whether CVE-2026-68770 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether CVE-2026-68770 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix CVE-2026-68770? Upgrade sentence-transformers to 5.6.0 or later.