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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| langchain-ai | langchain-ai/langchainjs | unspecified – < 0.2.19 | 0.2.19 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | langchain | < 0.2.19 | 0.2.19 | GHSA-hc5w-c9f8-9cc4 |