How broadly exploitable is this vulnerability?

Exploitability depends on network exposure: if the Prefect API with the `/api/events/in` WebSocket endpoint is reachable from untrusted networks, a remote attacker may be able to interact with it without authentication. In isolated or tightly firewalled deployments, exposure is more limited.

Does an attacker need valid credentials or an account to exploit this?

Based on the nature of the flaw, an attacker typically does not need valid credentials if they can reach the vulnerable endpoint. The core issue is that authentication is missing or not properly enforced for this specific WebSocket route.

What is the safest general fix pattern for this class of issue?

Apply a uniform authentication and authorization layer to all endpoints—including WebSocket and other non-HTTP or streaming interfaces—so they inherit the same protections as your primary REST or RPC APIs. Ensure that any function capable of changing state, ingesting data, or triggering workflows requires a verified identity and appropriate permissions.

Severity:

HIGH RISK

(7.3)

Missing Authentication (CWE-287) on WebSocket Events Endpoint in Prefect

CVE-2026-7723

Published:

May 3, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

Vulnerability Type

Category:

Missing Authentication

CWE:

CWE-287;CWE-306

Impact:

Unauthorized Access to Protected Functionality

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authentication

CWE:

CWE-287;CWE-306

Impact:

Unauthorized Access to Protected Functionality

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

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Missing Authentication (CWE-287) on WebSocket Events Endpoint in Prefect

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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