CVE-2025-43855 (GCVE-0-2025-43855)

Vulnerability from cvelistv5 – Published: 2025-04-24 13:58 – Updated: 2025-05-14 20:07
VLAI
Title
tRPC 11 WebSocket DoS Vulnerability
Summary
tRPC allows users to build & consume fully typesafe APIs without schemas or code generation. In versions starting from 11.0.0 to before 11.1.1, an unhandled error is thrown when validating invalid connectionParams which crashes a tRPC WebSocket server. This allows any unauthenticated user to crash a tRPC 11 WebSocket server. Any tRPC 11 server with WebSocket enabled with a createContext method set is vulnerable. This issue has been patched in version 11.1.1.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-24 14:14 UTC
CWE
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
trpc trpc Affected: >= 11.0.0, < 11.1.1
Create a notification for this product.
Credits
Luke Childs <mail@lu.ke>
Show details on NVD website
To clipboard 

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