# CVE-2026-7723: PrefectHQ prefect WebSocket Endpoint in missing authentication

> CVE-2026-7723: PrefectHQ prefect WebSocket Endpoint in missing authentication. CVSS 7.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-7723
Last updated: 2026-06-17T11:02:52Z

- Published: 2026-05-04 02:30 UTC · Updated: 2026-06-17 11:02 UTC · Assigner: VulDB
- CVSS: 7.3 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
- EPSS: 0.42%, 36th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-287, CWE-306

## Description

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 performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called f8afecadf88ea5f73694dafa3a365b9d8fae1ad6. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

## Affected vendors and products

- PrefectHQ: prefect

## Tracked companies

- [Prefect](https://rewindex.com/company/prefect.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-7723)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-7723)
- [https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f](https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f)
- [https://github.com/PrefectHQ/prefect/](https://github.com/PrefectHQ/prefect/)
- [https://github.com/PrefectHQ/prefect/commit/f8afecadf88ea5f73694dafa3a365b9d8fae1ad6](https://github.com/PrefectHQ/prefect/commit/f8afecadf88ea5f73694dafa3a365b9d8fae1ad6)
- [https://github.com/PrefectHQ/prefect/pull/20372](https://github.com/PrefectHQ/prefect/pull/20372)
- [https://github.com/PrefectHQ/prefect/releases/tag/3.6.14](https://github.com/PrefectHQ/prefect/releases/tag/3.6.14)
- [https://vuldb.com/submit/807256](https://vuldb.com/submit/807256)
- [https://vuldb.com/vuln/360899](https://vuldb.com/vuln/360899)
- [https://vuldb.com/vuln/360899/cti](https://vuldb.com/vuln/360899/cti)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-7723 · Markdown: https://rewindex.com/cve/CVE-2026-7723.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-7723 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:25.264Z