CVE-2026-75128 (GCVE-0-2026-75128)
Vulnerability from cvelistv5 – Published: 2026-10-20 00:46 – Updated: 2026-10-20 14:34
VLAI
EPSS
VEX
Title
Langchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call Endpoint
Summary
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).
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 14:33 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.lasso.security/vulnerability-database… | technical-descriptionexploit |
| https://github.com/chatchat-space/Langchain-Chatc… | technical-description |
| https://www.vulncheck.com/advisories/langchain-ch… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| chatchat-space | Langchain-Chatchat |
Affected:
0 , ≤ 0.3.1.3
(custom)
cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:* |
Date Public
2026-10-15 00:00
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