CVE-2026-68770Public exploitNetwork attack vector

Code execution via local-model trust-gate bypass

Published Jul 31, 2026 · Updated Jul 31, 2026

Code injection in Hugging Face Sentence Transformers 5.5.1 and earlier allows attackers to execute Python code from a crafted local model. import_module_class treats any existing model path as trusted and dynamically imports modules.json-referenced Python even when trust_remote_code is false. An attacker must influence a model directory that an application later loads; the imported code runs with that application's process privileges.

CVSS severity9.3
Critical
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Hugging Face Sentence Transformers 5.5.1 and earlier allows attackers to execute Python code from a crafted local model. import_module_class treats any existing model path as trusted and dynamically imports modules.json-referenced Python even when trust_remote_code is false. An attacker must influence a model directory that an application later loads; the imported code runs with that application's process privileges.

The record

CVE
CVE-2026-68770
Published
Jul 31, 2026
Updated
Jul 31, 2026
Vendor
Hugging Face
Product
Sentence Transformers
Classifications
CWE-94, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=5.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hugging Face · Sentence Transformersversion=0 <=5.5.1

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Python

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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