CVE-2023-46229: Langchain LangChain Server Side Request Forgery Vulnerability

HIGH
Advisory Identifier: GHSA-655w-fm8m-m478
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CVSS 8.8
CWE-918
Published
Advisory Summary

CVE-2023-46229 is a HIGH (CVSS 8.8) langchain server side request forgery vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Langchain libraries in the PyPI ecosystem. The issue involves langchain server side request forgery vulnerability. Remediation is available by upgrading affected packages to version 0.0.317.

CVE-2023-46229 at a Glance

CVE Identifier CVE-2023-46229
GHSA Identifier GHSA-655w-fm8m-m478
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Langchain
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2023-46229

To remediate this vulnerability, upgrade all affected Langchain dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

langchain fixed: 0.0.317 
pip install langchain>=0.0.317
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show langchain

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-46229, inspect your installed packages using pip:

pip show langchain

Analyze the terminal output to locate any version of Langchain in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.317), your application is affected.

Note: The pip show langchain command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Langchain, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

LangChain before 0.0.317 allows SSRF via `document_loaders/recursive_url_loader.py` because crawling can proceed from an external server to an internal server.

CVE-2023-46229 Affected Langchain Versions

1 component(s)
Fixed Versions:
0.0.317
Product / Package Ecosystem Affected Versions Fixed Version
langchain
pypi/langchain
PyPI
< 0.0.317
0.0.317

References

NVD — CVE-2023-46229 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-46229
Langchain Source Repository REPOSITORY
https://github.com/langchain-ai/langchain/pull/11925
Security Fix Commit FIX COMMIT
https://github.com/langchain-ai/langchain/commit/9ecb7240a480720ec9d739b3877a52f76098a2b8
Langchain Source Repository REPOSITORY
https://github.com/langchain-ai/langchain
Langchain Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2023-205.yaml

Frequently Asked Questions

What is CVE-2023-46229?
CVE-2023-46229 is a security vulnerability in Langchain involving LangChain Server Side Request Forgery vulnerability under CWE-918: Server-Side Request Forgery (SSRF).
Which Langchain versions are affected?
Affected versions include releases prior to 0.0.317 across affected packages: langchain.
What version fixes CVE-2023-46229?
Upgrading to 0.0.317 (or the latest patched release for your respective branch) resolves the vulnerability.
Is langchain affected?
Yes, langchain is affected in releases prior to 0.0.317. Upgrade your dependency to 0.0.317 or later.
What is the CVSS score of CVE-2023-46229?
CVE-2023-46229 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-46229?
CVE-2023-46229 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check PyPI dependencies for CVE-2023-46229?
Run the dependency tree command: 'pip show langchain'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-655w-fm8m-m478",
  "modified" : "2024-09-30T16:12:04Z",
  "published" : "2023-10-19T06:30:23Z",
  "aliases" : [ "CVE-2023-46229" ],
  "summary" : "LangChain Server Side Request Forgery vulnerability",
  "details" : "LangChain before 0.0.317 allows SSRF via `document_loaders/recursive_url_loader.py` because crawling can proceed from an external server to an internal server.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "langchain"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.317"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-46229"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/langchain-ai/langchain/pull/11925"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/langchain-ai/langchain/commit/9ecb7240a480720ec9d739b3877a52f76098a2b8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/langchain-ai/langchain"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2023-205.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-19T16:35:44Z",
    "nvd_published_at" : "2023-10-19T05:15:58Z"
  }
}