A vulnerability was detected in PrefectHQ prefect up to 3.6.21. This impacts the function endswith of the file /api/health of the component Health Check API. Performing a manipulation results in improper authentication. The attack is possible to be carried out remotely. The exploit is now public and may be used. Upgrading to version 3.6.22 will fix this issue. Upgrading the affected component is recommended.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
PrefectHQ prefect affected
Version Status Constraints
3.6.0 affected —
3.6.1 affected —
3.6.2 affected —
3.6.3 affected —
3.6.4 affected —
3.6.5 affected —
3.6.6 affected —
3.6.7 affected —
3.6.8 affected —
3.6.9 affected —
3.6.10 affected —
3.6.11 affected —
3.6.12 affected —
3.6.13 affected —
3.6.14 affected —
3.6.15 affected —
3.6.16 affected —
3.6.17 affected —
3.6.18 affected —
3.6.19 affected —
3.6.20 affected —
3.6.21 affected —
3.6.22 unaffected —

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Project Subscriptions

Vendors Products
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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gist.github.com/nedlir/f576abbb0e491dc9bb7e106c140dda04 cve-icon cve-icon
https://github.com/PrefectHQ/prefect/ cve-icon cve-icon
https://github.com/PrefectHQ/prefect/pull/21063 cve-icon cve-icon
https://github.com/PrefectHQ/prefect/pull/21063/changes/d8c4ff97ef7c0a940925d32b2d76324c8def42de cve-icon cve-icon
https://github.com/PrefectHQ/prefect/releases/tag/3.6.22 cve-icon cve-icon
https://vuldb.com/submit/807255 cve-icon cve-icon
https://vuldb.com/vuln/360898 cve-icon cve-icon
https://vuldb.com/vuln/360898/cti cve-icon cve-icon
History

Mon, 04 May 2026 03:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was detected in PrefectHQ prefect up to 3.6.21. This impacts the function endswith of the file /api/health of the component Health Check API. Performing a manipulation results in improper authentication. The attack is possible to be carried out remotely. The exploit is now public and may be used. Upgrading to version 3.6.22 will fix this issue. Upgrading the affected component is recommended.
Title PrefectHQ prefect Health Check API health endswith improper authentication
First Time appeared Prefect
Prefect prefect
Weaknesses CWE-287
CPEs cpe:2.3:a:prefect:prefect:*:*:*:*:*:*:*:*
Vendors & Products Prefect
Prefect prefect
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-05-04T02:15:18.541Z

Reserved: 2026-05-03T09:18:12.918Z

Link: CVE-2026-7722

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-04T03:16:12.967

Modified: 2026-05-04T03:16:12.967

Link: CVE-2026-7722

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-04T04:30:36Z

Weaknesses