CVE-2025-54376

Hoverfly's WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled.

Published Sep 10, 2025 CVSS 4.0 · 7.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-27610 WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled
Github GHSA Github GHSA GHSA-jxmr-2h4q-rhxp WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled
History
Type Values Removed Values Added
First Time appeared Hoverfly
Hoverfly hoverfly
Weaknesses CWE-532
CPEs cpe:2.3:a:hoverfly:hoverfly:*:*:*:*:*:*:*:*
Vendors & Products Hoverfly
Hoverfly hoverfly
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
First Time appeared Spectolabs
Spectolabs hoverfly
Vendors & Products Spectolabs
Spectolabs hoverfly
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Hoverfly's WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled.
Weaknesses CWE-200
CWE-287
References
Metrics cvssV4_0

{'score': 7.8, '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

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 10, 2025, 8:05 PM
Reserved
Jul 21, 2025, 4:12 PM
Status
Analyzed
Published
Sep 10, 2025, 8:15 PM
Modified
Jun 17, 2026, 9:39 AM