# PYSEC-2024-114 - A vulnerability in the GraphCypherQAChain class of langchain-ai/langchainjs versions 0.2.5 and all…

Source: https://junglewise.ai/threats/pysec-2024-114-a-vulnerability-in-the-graphcypherqachain-class-of-eb1e3572  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-10-29  
License: CC BY 4.0 with a link back

Severity: low · CVSS 3.1 · Published 2024-10-29

A vulnerability in the GraphCypherQAChain class of langchain-ai/langchainjs versions 0.2.5 and all versions with this class allows for prompt injection, leading to SQL injection. This vulnerability permits unauthorized data manipulation, data exfiltration, denial of service (DoS) by deleting all data, breaches in multi-tenant security environments, and data integrity issues. Attackers can create, update, or delete nodes and relationships without proper authorization, extract sensitive data, disrupt services, access data across different tenants, and compromise the integrity of the database.

Technologies: [langchain (PyPI)](https://junglewise.ai/threats/technologies/langchain). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 3.1, published 29 October 2024.

**Which products and versions are affected?** langchain (PyPI) GIT:introduced=0,fixed=615b9d9ab30a2d23a2f95fb8d7acfdf4b41ad7a6|ECOSYSTEM:introduced=0,fixed=0.3.1.

**Is there a fix for This vulnerability?** Yes. langchain (PyPI): upgrade to 0.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run langchain (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- langchain (PyPI): upgrade to 0.3.1 or later

  ```sh
  pip install "langchain>=0.3.1"
  ```


## Affected products

- langchain (PyPI) GIT:introduced=0,fixed=615b9d9ab30a2d23a2f95fb8d7acfdf4b41ad7a6|ECOSYSTEM:introduced=0,fixed=0.3.1

## Related threats

- [PYSEC-2026-2561 - Denial of service in langchain-community](https://junglewise.ai/threats/cve-2024-2965-langchain-sitemaploader-denial-of-service-via-infinite-recursion)
- [PYSEC-2026-1507 - Langchain SQL Injection vulnerability](https://junglewise.ai/threats/cve-2024-8309-langchain-sql-injection-vulnerability)
- [PYSEC-2026-1514 - LangChain pickle deserialization of untrusted data](https://junglewise.ai/threats/cve-2024-5998-langchain-pickle-deserialization-of-untrusted-data)
- [PYSEC-2026-1510 - langchain vulnerable to path traversal](https://junglewise.ai/threats/cve-2024-3571-langchain-vulnerable-to-path-traversal)
- [PYSEC-2026-1509 - langchain Server-Side Request Forgery vulnerability](https://junglewise.ai/threats/cve-2024-0243-langchain-server-side-request-forgery-vulnerability)