Is this vulnerability remotely exploitable?

Yes, as long as the Dagu Web UI is reachable over the network (for example, exposed to the internet or a broader internal network), an unauthenticated attacker can connect to the SSE endpoints without credentials.

Does an attacker need valid credentials or an existing account?

No. When Basic authentication mode is enabled, the REST API is protected, but SSE endpoints can still be accessed without any credentials due to the missing `AuthRequired` enforcement.

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

The safest pattern is to treat all externally reachable endpoints—including SSE, WebSocket, and other streaming interfaces—as protected by default, explicitly requiring authentication and authorization and centralizing this logic in shared middleware or routing configuration.

Severity:

HIGH RISK

(7.5)

Missing Authentication for SSE Endpoints (CWE-306) in Dagu Workflow Engine

CVE-2026-31882

Published:

Mar 13, 2026

Status:

Analyzed

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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Vulnerability Type

Category:

Missing Authentication

CWE:

CWE-306

Impact:

Exposure of Sensitive Workflow and Execution Data

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Missing Authentication

CWE:

CWE-306

Impact:

Exposure of Sensitive Workflow and Execution Data

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Missing Authentication for SSE Endpoints (CWE-306) in Dagu Workflow Engine

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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