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CVE-2026-56271

Flowise - Weak Default JWT Secrets in Authentication Middleware PUBLISHED

Description (CNA)

Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses weak hardcoded default JWT secrets ('auth_token', 'refresh_token') and default audience and issuer values ('AUDIENCE', 'ISSUER') in the enterprise passport authentication middleware (packages/server/src/enterprise/middleware/passport/index.ts). When the corresponding environment variables (JWT_AUTH_TOKEN_SECRET, JWT_REFRESH_TOKEN_SECRET, JWT_AUDIENCE, JWT_ISSUER) are not set, the application silently falls back to these publicly known defaults, allowing an attacker to forge valid JWTs and impersonate any user, including administrators, resulting in authentication bypass.

Affected (CNA)

Vendor / productVersions
Flowise / Flowiseaffected 0 before 3.1.0; unaffected 3.1.0

CWE

CWE-321

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.