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CVE-2026-31882

7.5 · HIGH

Dagu is a workflow engine with a built-in Web user interface.

Published Mar 13, 2026CWE-306EPSS 0.77%

Overview

CVE-2026-31882 is a high-severity vulnerability. It was published on March 13, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Dagu is a workflow engine with a built-in Web user interface. Prior to 2.2.4, when Dagu is configured with HTTP Basic authentication (DAGU_AUTH_MODE=basic), all Server-Sent Events (SSE) endpoints are accessible without any credentials. This allows unauthenticated attackers to access real-time DAG execution data, workflow configurations, execution logs, and queue status — bypassing the authentication that protects the REST API. The buildStreamAuthOptions() function builds authentication options for SSE/streaming endpoints. When the auth mode is basic, it returns an auth.Options struct with BasicAuthEnabled: true but AuthRequired defaults to false (Go zero value). The authentication middleware at internal/service/frontend/auth/middleware.go allows unauthenticated requests when AuthRequired is false. This vulnerability is fixed in 2.2.4.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/dagu-org/dagu/commit/064616c9b80c04824c1c7c357308f77f3f24d775GitHubgithub.com/dagu-org/dagu/pull/1752GitHubgithub.com/dagu-org/dagu/releases/tag/v2.2.4GitHubgithub.com/dagu-org/dagu/security/advisories/GHSA-9wmw-9wph-2vwp

How CyberStrike helps

Frequently asked questions

What is CVE-2026-31882?

CVE-2026-31882 is a high-severity vulnerability. It was published on March 13, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-31882?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-31882?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-31882?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-31882 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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