CVE-2026-31882
- Source
- https://cve.org/CVERecord?id=CVE-2026-31882
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31882.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-31882
- Aliases
- Published
- 2026-03-13T19:28:25Z
- Modified
- 2026-10-28T02:30:40Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- Dagu SSE Authentication Bypass in Basic Auth Mode
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-306" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31882.json" }- References
-
- https://github.com/dagu-org/dagu/releases/tag/v2.2.4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31882.json
- https://github.com/dagu-org/dagu/security/advisories/GHSA-9wmw-9wph-2vwp
- https://nvd.nist.gov/vuln/detail/CVE-2026-31882
- https://github.com/dagu-org/dagu/commit/064616c9b80c04824c1c7c357308f77f3f24d775
- https://github.com/dagu-org/dagu/pull/1752
Affected packages
Git / github.com/dagucloud/dagu
Affected ranges
- Type
- GIT
- Repo
- https://github.com/dagucloud/dagu
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:dagu:dagu:*:*:*:*:*:*:*:*", "range": [ { "introduced": "0" }, { "fixed": "2.2.4" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "064616c9b80c04824c1c7c357308f77f3f24d775" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v2.2.4", "range": [ { "fixed": "12c2e5395bd9331d49ca103593edfd0db39c4f38" } ], "source": "REFERENCES_TAG" } ] }