CVE-2026-75128criticalCWE-306

CVE-2026-75128: critical vulnerability in chatchat-space Langchain-Chatchat

Langchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call Endpoint

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63Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 9.3epss 0.6%
Langchain-Chatchat through 0.3.1.3 exposes a POST /tools/call API endpoint that invokes any registered tool by name without authentication, leaving the always-registered shell tool callable. Remote attackers can send a single request naming the shell tool to execute arbitrary OS commands as the server user (root in the shipped Docker image).
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
chatchat-space · Langchain-Chatchat
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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