# CVE-2024-10940: PYSEC-2026-1517 - langchain-core allows unauthorized users to read arbitrary files from the host file system

Source: https://junglewise.ai/threats/cve-2024-10940-langchain-core-allows-unauthorized-users-to-read-arbitrary-files  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2024-10940 · Severity: low · CVSS 3 · Published 2026-07-07

langchain-core allows unauthorized users to read arbitrary files from the host file system

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

## Quick answers

**Is CVE-2024-10940 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-10940 being exploited in the wild.

**How severe is CVE-2024-10940?** Low severity, with a CVSS score of 3, published 7 July 2026.

**Which products and versions are affected?** langchain-core (PyPI) ECOSYSTEM:introduced=0.1.17,fixed=0.1.53, ECOSYSTEM:introduced=0.1.17,fixed=0.1.53,introduced=0.2.0,fixed=0.2.43,introduced=0.3.0,fixed=0.3.15.

**Is there a fix for CVE-2024-10940?** Yes. langchain-core (PyPI): upgrade to 0.1.53, 0.3.15 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-10940?** Check whether you run langchain-core (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-core (PyPI): upgrade to 0.1.53, 0.3.15 or later

  ```sh
  pip install "langchain-core>=0.3.15"
  ```


## Affected products

- langchain-core (PyPI) ECOSYSTEM:introduced=0.1.17,fixed=0.1.53, ECOSYSTEM:introduced=0.1.17,fixed=0.1.53,introduced=0.2.0,fixed=0.2.43,introduced=0.3.0,fixed=0.3.15

## Identifiers

- CVE-2024-10940
- GHSA-5chr-fjjv-38qv
- PYSEC-2026-1517

## Related threats

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- [PYSEC-2026-1519 - LangChain's XMLOutputParser vulnerable to XML Entity Expansion](https://junglewise.ai/threats/cve-2024-1455-langchain-s-xmloutputparser-vulnerable-to-xml-entity-expansion)
- [LangChain unsafe deserialization in load() via broad object allowlists](https://junglewise.ai/threats/cve-2026-44843-langchain-unsafe-deserialization-in-load-via-broad-object)
- [LangChain incomplete f-string validation in prompt templates](https://junglewise.ai/threats/cve-2026-40087-langchain-incomplete-f-string-validation-in-prompt-templates)
- [LangChain langchain-core path traversal in prompt loading functions](https://junglewise.ai/threats/cve-2026-34070-langchain-langchain-core-path-traversal-in-prompt-loading)