CVE-2024-2057

Arbitrary code execution via unsafe retriever deserialization

Published Mar 1, 2024 · Updated Aug 1, 2024

Unsafe deserialization in LangChain Community 0.0.26 allows attackers to execute arbitrary code through a malicious TFIDFRetriever archive. TFIDFRetriever.load_local passes locally stored .joblib and .pkl objects to unsafe deserializers without first requiring an explicit trust opt-in. Exploitation requires a consuming application to load attacker-controlled retriever files, after which payload code runs with the application process's privileges.

CVSS severity9.8
Critical
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in LangChain Community 0.0.26 allows attackers to execute arbitrary code through a malicious TFIDFRetriever archive. TFIDFRetriever.load_local passes locally stored .joblib and .pkl objects to unsafe deserializers without first requiring an explicit trust opt-in. Exploitation requires a consuming application to load attacker-controlled retriever files, after which payload code runs with the application process's privileges.

The record

CVE
CVE-2024-2057
Published
Mar 1, 2024
Updated
Aug 1, 2024
Vendor
LangChain
Product
LangChain Community
Classifications
CWE-918, T1059.006
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Mar 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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=0.0.26

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

LangChain · LangChain Communityversion=0.0.26

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1059.006Python

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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