CVE-2025-54376 - CVE House
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Status published High CVE-2025-54376

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

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from SpectoLabs

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CVE-2025-54123
Hoverfly vulnerable to remote code execution at `/api/v2/hoverfly/middleware` endpoint due to insecure middleware implementation
Critical 9.8
CVE-2024-45388
Arbitrary file read in the `/api/v2/simulation` endpoint in hoverfly (`GHSL-2023-274`)
High 7.5

Affected Vendor

Affected Software

hoverfly
Vulnerable Versions:
< 1.12.0

Timeline

Official Publish: September 10th, 2025
Last Modified: September 10th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-200 CWE-287

MITRE ATT&CK TTPs

T1213 Data from Information Repositories
Collection
T1005 Data from Local System
Collection
T1552 Unsecured Credentials
Credential Access
T1041 Exfiltration Over C2 Channel
Exfiltration
T1190 Exploit Public-Facing Application
Initial Access
T1078 Valid Accounts
Persistence
T1556 Modify Authentication Process
Credential Access