Auth bypass in Prefecthq Prefect
CVE-2026-7723
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 perform…
Vulnerability class: Broken Authentication
EPSS: 0.001 (33.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Prefecthq Prefect — versions 3.6.0, 3.6.1, 3.6.2
Weakness classification (CWE)
References
- VDB-360899 | PrefectHQ prefect WebSocket Endpoint in missing authentication (vdb-entry)
- VDB-360899 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #807256 | PerfectHQ Perfect <=3.6.13 Missing Critical Step in Authentication (third-party-advisory)
- cna@vuldb.com (exploit)
- cna@vuldb.com (issue-tracking, patch)
- cna@vuldb.com (patch)
- cna@vuldb.com (patch)
- cna@vuldb.com (product)
- cna@vuldb.com (patch)
Frequently asked questions
- What is CVE-2026-7723?
- CVE-2026-7723 is a high-severity vulnerability in Prefecthq Prefect, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-05-04.
- How severe is CVE-2026-7723?
- High severity. CVSS v3 base score is 7.3 out of 10.