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CVE-2026-7723
Published:May 04, 2026
Updated:May 16, 2026
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 Packages
prefect (CONDA):
Affected version(s) >=0.5.0 <3.6.14
Fix Suggestion:
Update to version 3.6.14
https://github.com/PrefectHQ/prefect.git (GITHUB):
Affected version(s) >=0.2.0 <3.6.14
Fix Suggestion:
Update to version 3.6.14
prefect (PYTHON):
Affected version(s) >=0.5.0 <3.6.14
Fix Suggestion:
Update to version 3.6.14
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CVSS v4
Base Score:
5.5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
7.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Exploit Maturity
PROOF-OF-CONCEPT
Weakness Type (CWE)
Missing Authentication for Critical Function
Improper Authentication
EPSS
Base Score:
0.14