CVE-2026-31882

{"id": "CVE-2026-31882", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-03-13T19:54:37.000", "references": [{"url": "https://github.com/dagu-org/dagu/commit/064616c9b80c04824c1c7c357308f77f3f24d775", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dagu-org/dagu/pull/1752", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dagu-org/dagu/releases/tag/v2.2.4", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/dagu-org/dagu/security/advisories/GHSA-9wmw-9wph-2vwp", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-306"}]}], "descriptions": [{"lang": "en", "value": "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 \u2014 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."}, {"lang": "es", "value": "Dagu es un motor de flujo de trabajo con una interfaz de usuario web integrada. Antes de la versi\u00f3n 2.2.4, cuando Dagu est\u00e1 configurado con autenticaci\u00f3n HTTP b\u00e1sica (DAGU_AUTH_MODE=basic), todos los puntos finales de Server-Sent Events (SSE) son accesibles sin ninguna credencial. Esto permite a atacantes no autenticados acceder a datos de ejecuci\u00f3n de DAG en tiempo real, configuraciones de flujo de trabajo, registros de ejecuci\u00f3n y estado de la cola \u2014 eludiendo la autenticaci\u00f3n que protege la API REST. La funci\u00f3n buildStreamAuthOptions() construye opciones de autenticaci\u00f3n para puntos finales SSE/streaming. Cuando el modo de autenticaci\u00f3n es b\u00e1sico, devuelve una estructura auth.Options con BasicAuthEnabled: true pero AuthRequired por defecto es false (valor cero de Go). El middleware de autenticaci\u00f3n en internal/service/frontend/auth/middleware.go permite solicitudes no autenticadas cuando AuthRequired es false. Esta vulnerabilidad se corrige en la versi\u00f3n 2.2.4."}], "lastModified": "2026-03-18T20:14:20.940", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:dagu:dagu:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "681DF7E8-8500-4F63-8E04-FC8AB4CAFD3A", "versionEndExcluding": "2.2.4"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}