Flowise - Weak Default Token Hash Secret in JWT Token Encryption
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- Active
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-798.
Summary
Flowise before 3.1.0 (npm package flowise, versions 3.0.13 and earlier) uses a weak hardcoded default value 'Secre$t' for the TOKEN_HASH_SECRET environment variable in packages/server/src/enterprise/utils/tempTokenUtils.ts when the variable is not configured. This secret derives the AES-256-CBC key used to encrypt user IDs and workspace IDs in the 'meta' field of JWT tokens. An attacker who knows the default secret can decrypt this metadata to extract internal user and workspace identifiers, and re-encrypt manipulated values such as altered user or workspace IDs. Because the JWT signature is validated separately, decrypting or tampering with this metadata does not by itself grant access, but the disclosure of internal identifiers and possible metadata manipulation could aid privilege escalation or unauthorized data access.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| FlowiseAI | Flowise | before 3.1.0 | 3.1.0 | Patch available | CNA |
| — | flowise (npm) | before 3.1.0 | 3.1.0 | Patch available | GHSA-m7mq-85xj-9x33 |
- Flowise VendorFlowiseAI Affected before 3.1.0 Fixed in 3.1.0 Patch available CNA
- flowise (npm) Vendor— Affected before 3.1.0 Fixed in 3.1.0 Patch available GHSA-m7mq-85xj-9x33
Remediation
- Fix · CNA Flowise (Flowise) Fixed in 3.1.0
- Fix · GHSA-m7mq-85xj-9x33 flowise (npm) Fixed in 3.1.0 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Flowise 3.1.0
2 records Highest priority Priority HIGH 1 HIGH, 1 LOW
Other records, highest priority first
- TI-2026-40635 Flowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod EndpointPriority HIGH 77
Timeline
- 2026-10-02 Threatist record created from CVE-2026-56269
- 2026-10-03 Alias added: GHSA-m7mq-85xj-9x33
References
More FlowiseAI Flowise vulnerabilities
- TI-2025-37059 Flowise has Remote Code Execution vulnerability CVSS 3.1CRITICAL 10.0
- TI-2025-36193 Flowise Cloud and Local Deployments have Unauthenticated Password Reset Token Disclosure that Leads to Account Takeover CVSS 3.1CRITICAL 9.8
- TI-2025-08190 Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers CVSS 3.1CRITICAL 9.8
- TI-2026-51595 Flowise before 3.1.3 Sandbox Escape via Puppeteer CVSS 4.0CRITICAL 9.4
- TI-2026-49250 Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability CVSS 4.0CRITICAL 9.5
- TI-2025-43459 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API CVSS 4.0CRITICAL 10.0
Sources
- CVE-2026-56269 · CVE Program
- CVE-2026-56269 · NVD
- FIRST EPSS
- GHSA-m7mq-85xj-9x33 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences