CVE-2026-3514

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.

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Produits concernés

• prefecthq/prefect
• Prefect prefect

Scores CVSS

Faiblesses (CWE)

• CWE-863

Références

• https://github.com/prefecthq/prefect/commit/e21617125335025b4b27e7d6f0ca028e8e8f3b79 Patch
• https://huntr.com/bounties/c540e5e1-f74f-44f4-bfa0-9764ff6daa75 ExploitThird Party Advisory
• https://huntr.com/bounties/c540e5e1-f74f-44f4-bfa0-9764ff6daa75 ExploitThird Party Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories