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CVE-2025-54376— Hoverfly's WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled.

Quick assessment

Affected
SpectoLabs hoverfly
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hoverfly是SpectoLabs开源的一种轻量级的开源 API 模拟工具。 Hoverfly 1.11.3及之前版本存在授权问题漏洞，该漏洞源于未受保护的WebSocket端点，可能导致信息泄露。

AI Predicted 7.5 Difficulty: Easy EPSS 0.70% · P51

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-54376

Vulnerability Information
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Vulnerability Title
Hoverfly's WebSocket endpoint `/api/v2/ws/logs` reachable without authentication even when --auth is enabled.
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Hoverfly 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hoverfly是SpectoLabs开源的一种轻量级的开源 API 模拟工具。 Hoverfly 1.11.3及之前版本存在授权问题漏洞，该漏洞源于未受保护的WebSocket端点，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SpectoLabs hoverfly < 1.12.0 -

II. Public POCs for CVE-2025-54376

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III. Intelligence Information for CVE-2025-54376

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Vendor Advisories for CVE-2025-54376 (1)

IV. Related Vulnerabilities

Same product: hoverfly
Same vendor: SpectoLabs
Same weakness: CWE-200

V. Comments for CVE-2025-54376

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