CVE-2026-50181

Vulnerability Description

Langroid is a framework for building large-language-model-powered applications. Prior to version 0.64.0, Langroid's `ReadFileTool` and `WriteFileTool` appear to treat `curr_dir` as the intended working-directory boundary for file operations. However, the tools only change the process working directory to `curr_dir` and then operate on the user-supplied `file_path` without resolving and enforcing that the final path remains inside `curr_dir`. As a result, a tool caller can supply path traversal sequences such as `../secret.txt` to read files outside the configured current directory, or `../written_by_tool.txt` to write files outside that directory. This can impact applications that expose Langroid file tools to an LLM agent, user-controlled tool call, or delegated coding/documentation agent while relying on `curr_dir` to restrict file access to a project/workspace directory. Version 0.64.0 patches the issue.

CVSS Score

Related Weaknesses (CWE)

References

• https://github.com/langroid/langroid/commit/56e2756ecab70a70a7e6edbee2f2187b8484
• https://github.com/langroid/langroid/security/advisories/GHSA-fg23-3346-88f5
• https://github.com/langroid/langroid/security/advisories/GHSA-fg23-3346-88f5