CVE-2026-7724— PrefectHQ prefect Webhook/Notification validate_restricted_url toctou
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I. Basic Information for CVE-2026-7724
Vulnerability Information
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Vulnerability Title
PrefectHQ prefect Webhook/Notification validate_restricted_url toctou
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.6.28.dev2 addresses this issue. The identifier of the patch is 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Upgrading the affected component is advised. 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:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: NVD (National Vulnerability Database)
Vulnerability Title
Prefect 竞争条件问题漏洞
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 3.6.28.dev1及之前版本存在竞争条件问题漏洞，该漏洞源于Webhook/Notification组件的函数validate_restricted_url存在检查时间与使用时间问题，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
II. Public POCs for CVE-2026-7724
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- REPORT.md · GitHubexploit
- Linearissue-tracking
- CVE-2026-7724 | PrefectHQ prefect up to 3.6.28.dev1 Webhook/Notification validate_restricted_url toctouvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-7724
Same Patch Batch · PrefectHQ · 2026-05-04 · 4 CVEs total
| CVE-2026-7723 | 7.3 HIGH | PrefectHQ prefect WebSocket Endpoint in missing authentication |
| CVE-2026-7725 | 6.3 MEDIUM | PrefectHQ prefect GitRepository Pull storage.py argument injection |
| CVE-2026-7722 | 5.3 MEDIUM | PrefectHQ prefect Health Check API health endswith improper authentication |
IV. Related Vulnerabilities
Same vendor: PrefectHQ
- CVE-2026-7725
PrefectHQ prefect GitRepository Pull storage.py argument inj - CVE-2026-7723
PrefectHQ prefect WebSocket Endpoint in missing authenticati - CVE-2026-7722
PrefectHQ prefect Health Check API health endswith improper - CVE-2026-32871
FastMCP OpenAPI Provider has an SSRF & Path Traversal Vulner - CVE-2024-8183
CORS Misconfiguration in prefecthq/prefect
Same weakness: CWE-367
- CVE-2026-42344
FastGPT: DNS rebinding TOCTOU bypass in isInternalAddress al - CVE-2026-44694
n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API clien - CVE-2025-69233
Apache CloudStack: Domain/account resources limits not honor - CVE-2026-34354
Akamai Guardicore Platform Agent 安全漏洞 - CVE-2026-41002
VMware Spring Cloud Config 安全漏洞
V. Comments for CVE-2026-7724
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