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CVE-2026-7723— PrefectHQ prefect WebSocket Endpoint in missing authentication

CVSS 7.3 · High EPSS 0.14% · P33
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I. Basic Information for CVE-2026-7723

Vulnerability Information
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Vulnerability Title
PrefectHQ prefect WebSocket Endpoint in missing authentication
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called f8afecadf88ea5f73694dafa3a365b9d8fae1ad6. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Prefect 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Prefect是Prefect开源的一款工作流编排工具，使开发人员能够构建、观察数据管道并对数据管道做出反应。 Prefect 3.6.13及之前版本存在授权问题漏洞，该漏洞源于WebSocket Endpoint组件中文件/api/events/in的未知功能存在身份验证缺失，攻击者可通过远程发起攻击。
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

VendorProductAffected VersionsCPESubscribe
PrefectHQprefect 3.6.0 cpe:2.3:a:prefect:prefect:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-7723

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III. Intelligence Information for CVE-2026-7723

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Same Patch Batch · PrefectHQ · 2026-05-04 · 4 CVEs total

CVE-2026-77256.3 MEDIUMPrefectHQ prefect GitRepository Pull storage.py argument injection
CVE-2026-77225.3 MEDIUMPrefectHQ prefect Health Check API health endswith improper authentication
CVE-2026-77245.0 MEDIUMPrefectHQ prefect Webhook/Notification validate_restricted_url toctou

IV. Related Vulnerabilities

Same product: prefect
Same vendor: PrefectHQ
Same weakness: CWE-306

V. Comments for CVE-2026-7723

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