CVE-2026-7723CWE-287CWE-306

PrefectHQ prefect WebSocket Endpoint in missing authentication

Medium · published May 4, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
53.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00713 · 53.1th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-306 · Missing Authentication for Critical Function
Published
2026-05-04T02:30Z
EPSS history
Timeline
  • 04 MAY 02:30Z
    PrefectHQ prefect WebSocket Endpoint in missing authentication
    cvelistv5