Quick answers
- Is CVE-2026-75128 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-75128 being exploited in the wild.
- How severe is CVE-2026-75128?
- Critical severity, with a CVSS score of 9.8, published 20 October 2026.
- Which products and versions are affected?
- Chatchat-Space Langchain-Chatchat through 0.3.1.3.
- Is there a fix for CVE-2026-75128?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-75128 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-75128?
- Check whether you run Chatchat-Space Langchain-Chatchat at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The POST /tools/call endpoint in the application lacks authentication checks and directly invokes any registered tool by name without validation. The shell tool is always registered by default and can be called to execute arbitrary OS commands. An unauthenticated attacker can send a single HTTP request to invoke this endpoint and gain remote code execution as the application's user context.
Affected products
- Chatchat-space Langchain-Chatchat through 0.3.1.3
Timeline
- 2026-10-20: disclosed: CVE-2026-75128 published