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CVE-2025-54376

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Date: September 10, 2025

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.

Severity Score

Severity Score

Weakness Type (CWE)

Improper Authentication

CWE-287

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Insertion of Sensitive Information into Log File

CWE-532

Top Fix

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Upgrade Version

Upgrade to version github.com/SpectoLabs/hoverfly - v1.12.0;github.com/SpectoLabs/hoverfly - v1.12.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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