VulnerabilityAnalyzed

CVE-2024-7774

A path traversal vulnerability exists in the `getFullPath` method of langchain-ai/langchainjs version 0.2.5.

CRITICAL 9.1EPSS 0.55%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS: 0.55% probability · 44th percentile
CISA KEV: Not listed
Weakness: CWE-29, CWE-22
Affected: langchain/langchain.js
Source: security@huntr.dev

References

https://github.com/langchain-ai/langchainjs/commit/a0fad77d6b569e5872bd4a9d33be0c0785e538a9Patch
https://huntr.com/bounties/8fe40685-b714-4191-af7a-3de5e5628ceeExploit, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.