CVE-2024-21513Public exploitNetwork attack vector

Authenticated code execution via evaluated database values

Published Jul 15, 2024 · Updated Aug 1, 2024

Code injection in LangChain Experimental 0.0.15 through 0.0.20 allows remote authenticated users to execute Python code through prompts. VectorSQLDatabaseChain's get_result_from_sqldb passes every database value to _try_eval, which invokes Python eval without restricting code. Exploitation requires control of an input prompt and a server configured with VectorSQLDatabaseChain, granting code execution in the host process.

CVSS severity9.0
Critical
EPSS probability1.86%
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 LangChain Experimental 0.0.15 through 0.0.20 allows remote authenticated users to execute Python code through prompts. VectorSQLDatabaseChain's get_result_from_sqldb passes every database value to _try_eval, which invokes Python eval without restricting code. Exploitation requires control of an input prompt and a server configured with VectorSQLDatabaseChain, granting code execution in the host process.

The record

CVE
CVE-2024-21513
Published
Jul 15, 2024
Updated
Aug 1, 2024
Vendor
LangChain
Product
LangChain Experimental
Classifications
CWE-94, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 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=0.0.15 <0.0.21

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LangChain · LangChain Experimentalversion=0.0.15 <0.0.21

Published CVSS scores

9.0GitHubCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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
Privilegesauthenticated
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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