CVE-2026-56278
Flowise - Session Hijacking via Weak Default Express Session Secret
Vexday Risk Score
25Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 9.3EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
30 jun 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses a weak hardcoded default secret ('flowise') for the express-session middleware when the EXPRESS_SESSION_SECRET environment variable is not set (packages/server/src/enterprise/middleware/passport/index.ts). Because this default secret is publicly visible in the source code, an attacker can forge valid signed session cookies to impersonate any user and bypass authentication.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Productos afectados
Flowise · Flowise¿Quieres saber si tu infraestructura está expuesta a esto?
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