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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-3514 Detail

Description

In version 3.6.19 of prefecthq/prefect, an authentication bypass vulnerability exists due to the improper handling of URL path exemptions for health check probes. Specifically, the authentication middleware exempts any URL path ending with 'health' or 'ready' from authentication checks. This allows an attacker to create resources with names ending in 'health' or 'ready' and access them without authentication. Affected endpoints include those for variables, flows, work pools, work queues, and deployments. This vulnerability can lead to unauthorized access to sensitive information, such as API keys and database credentials, stored in Prefect Variables.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/prefecthq/prefect/commit/e21617125335025b4b27e7d6f0ca028e8e8f3b79 huntr.dev
https://huntr.com/bounties/c540e5e1-f74f-44f4-bfa0-9764ff6daa75 CISA-ADP, huntr.dev

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization huntr.dev  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-3514
NVD Published Date:
06/02/2026
NVD Last Modified:
06/02/2026
Source:
huntr.dev