What’s Vulnerable › Vulnerabilities

CVE-2024-7774: Path Traversal in langchain-ai/langchainjs

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-10-29 · updated 2026-06-17
• Weakness: CWE-29

Description

A path traversal vulnerability exists in the `getFullPath` method of langchain-ai/langchainjs version 0.2.5. This vulnerability allows attackers to save files anywhere in the filesystem, overwrite existing text files, read `.txt` files, and delete files. The vulnerability is exploited through the `setFileContent`, `getParsedFile`, and `mdelete` methods, which do not properly sanitize user input.

Affected products

• @langchain Langchain.Js: 0.2.5

References

• https://github.com/langchain-ai/langchainjs/commit/a0fad77d6b569e5872bd4a9d33be0c0785e538a9
• https://huntr.com/bounties/8fe40685-b714-4191-af7a-3de5e5628cee

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