5.5
MEDIUM CVSS 4.0
CVE-2026-7722
PrefectHQ prefect Health Check API health endswith improper authentication
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. The patch is named e21617125335025b4b27e7d6f0ca028e8e8f3b79. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

INFO

Published Date :

May 4, 2026, 3:16 a.m.

Last Modified :

May 4, 2026, 10:16 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-7722 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Prefect prefect
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 MEDIUM [email protected]
Solution
Upgrade PrefectHQ prefect to version 3.6.22 to fix the improper authentication vulnerability.
  • Upgrade PrefectHQ prefect to version 3.6.22.
  • Update the Health Check API component.
Public PoC/Exploit Available at Github

CVE-2026-7722 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-7722 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

CVE Advisories Published

cve exploit poc research security vulnerability

HTML Python

Updated: 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Jan. 21, 2026, 5:28 p.m. This repo has been linked 13 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-7722 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-7722 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 04, 2026

    Action Type Old Value New Value
    Changed 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. 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. The patch is named e21617125335025b4b27e7d6f0ca028e8e8f3b79. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
    Added Reference https://github.com/PrefectHQ/prefect/commit/e21617125335025b4b27e7d6f0ca028e8e8f3b79
    Removed Reference https://github.com/PrefectHQ/prefect/pull/21063/changes/d8c4ff97ef7c0a940925d32b2d76324c8def42de
  • New CVE Received by [email protected]

    May. 04, 2026

    Action Type Old Value New Value
    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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CWE CWE-287
    Added Reference https://gist.github.com/nedlir/f576abbb0e491dc9bb7e106c140dda04
    Added Reference https://github.com/PrefectHQ/prefect/
    Added Reference https://github.com/PrefectHQ/prefect/pull/21063
    Added Reference https://github.com/PrefectHQ/prefect/pull/21063/changes/d8c4ff97ef7c0a940925d32b2d76324c8def42de
    Added Reference https://github.com/PrefectHQ/prefect/releases/tag/3.6.22
    Added Reference https://vuldb.com/submit/807255
    Added Reference https://vuldb.com/vuln/360898
    Added Reference https://vuldb.com/vuln/360898/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.