CVE-2023-34540: Langchain Langchain OS Command Injection Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-x32c-59v5-h7fg
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CVSS 9.8
CWE-78
Published
Advisory Summary

CVE-2023-34540 is a CRITICAL (CVSS 9.8) langchain os command injection vulnerability vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Langchain libraries in the PyPI ecosystem. The issue involves langchain os command injection vulnerability. Remediation is available by upgrading affected packages to version 0.0.225.

CVE-2023-34540 at a Glance

CVE Identifier CVE-2023-34540
GHSA Identifier GHSA-x32c-59v5-h7fg
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product Langchain
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:N/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 None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2023-34540

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: 0.0.225 
pip install langchain>=0.0.225
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-2023-34540, 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 0.0.225), 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-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. 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 v0.0.225 was discovered to contain a remote code execution (RCE) vulnerability in the component JiraAPIWrapper (aka the JIRA API wrapper). This vulnerability allows attackers to execute arbitrary code via crafted input. As noted in the "releases/tag" reference, a fix is available.

CVE-2023-34540 Affected Langchain Versions

1 component(s)
Fixed Versions:
0.0.225
Product / Package Ecosystem Affected Versions Fixed Version
langchain
pypi/langchain
PyPI
< 0.0.225
0.0.225

References

NVD — CVE-2023-34540 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-34540
Langchain Source Repository REPOSITORY
https://github.com/hwchase17/langchain/issues/4833
Langchain Source Repository REPOSITORY
https://github.com/langchain-ai/langchain/issues/4833
Langchain Source Repository REPOSITORY
https://github.com/langchain-ai/langchain/pull/6992
Security Fix Commit FIX COMMIT
https://github.com/langchain-ai/langchain/commit/a2f191a32229256dd41deadf97786fe41ce04cbb
Langchain Source Repository REPOSITORY
https://github.com/langchain-ai/langchain
Langchain Release RELEASE
https://github.com/langchain-ai/langchain/releases/tag/v0.0.225
Langchain Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2023-91.yaml

Frequently Asked Questions

What is CVE-2023-34540?
CVE-2023-34540 is a security vulnerability in Langchain involving Langchain OS Command Injection vulnerability under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Langchain versions are affected?
Affected versions include releases prior to 0.0.225 across affected packages: langchain.
What version fixes CVE-2023-34540?
Upgrading to 0.0.225 (or the latest patched release for your respective branch) resolves the vulnerability.
Is langchain affected?
Yes, langchain is affected in releases prior to 0.0.225. Upgrade your dependency to 0.0.225 or later.
What is the CVSS score of CVE-2023-34540?
CVE-2023-34540 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-34540?
CVE-2023-34540 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).
How can I check PyPI dependencies for CVE-2023-34540?
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-x32c-59v5-h7fg",
  "modified" : "2024-09-30T16:13:53Z",
  "published" : "2023-06-14T15:30:39Z",
  "aliases" : [ "CVE-2023-34540" ],
  "summary" : "Langchain OS Command Injection vulnerability",
  "details" : "Langchain before v0.0.225 was discovered to contain a remote code execution (RCE) vulnerability in the component JiraAPIWrapper (aka the JIRA API wrapper). This vulnerability allows attackers to execute arbitrary code via crafted input. As noted in the \"releases/tag\" reference, a fix is available.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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" : "0.0.225"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-34540"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/hwchase17/langchain/issues/4833"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/langchain-ai/langchain/issues/4833"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/langchain-ai/langchain/pull/6992"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/langchain-ai/langchain/commit/a2f191a32229256dd41deadf97786fe41ce04cbb"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/langchain-ai/langchain"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/langchain-ai/langchain/releases/tag/v0.0.225"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2023-91.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-14T21:02:46Z",
    "nvd_published_at" : "2023-06-14T15:15:10Z"
  }
}