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.
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History
Tue, 02 Jun 2026 14:30:00 +0000
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Tue, 02 Jun 2026 08:30:00 +0000
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| 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. | |
| Title | Authentication Bypass in prefecthq/prefect | |
| Weaknesses | CWE-863 | |
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cvssV3_0
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Status: PUBLISHED
Assigner: @huntr_ai
Published:
Updated: 2026-06-02T13:13:11.889Z
Reserved: 2026-03-04T15:03:15.653Z
Link: CVE-2026-3514
Updated: 2026-06-02T13:12:02.871Z
Status : Awaiting Analysis
Published: 2026-06-02T09:16:16.100
Modified: 2026-06-02T14:35:45.167
Link: CVE-2026-3514
No data.
OpenCVE Enrichment
Updated: 2026-06-02T09:30:05Z