Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the OAuth2 token refresh endpoint POST /api/v1/oauth2-credential/refresh/:credentialId is unauthenticated by design and performs a server-side HTTP request to the credential-controlled accessTokenUrl without SSRF protections. Runtime validation confirmed that the endpoint was reachable without authentication, triggered outbound POST requests to an attacker-controlled server, reflected the full remote response body to the caller through tokenInfo, and sent client_id, client_secret, grant_type=refresh_token, and refresh_token in the request body. This issue is fixed in version 3.1.3.
Metrics
Affected Vendors & Products
References
History
Tue, 04 Aug 2026 20:30:00 +0000
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ssvc
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Tue, 04 Aug 2026 17:15:00 +0000
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Flowiseai
Flowiseai flowise |
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Flowiseai
Flowiseai flowise |
Tue, 04 Aug 2026 15:00:00 +0000
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| Description | Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the OAuth2 token refresh endpoint POST /api/v1/oauth2-credential/refresh/:credentialId is unauthenticated by design and performs a server-side HTTP request to the credential-controlled accessTokenUrl without SSRF protections. Runtime validation confirmed that the endpoint was reachable without authentication, triggered outbound POST requests to an attacker-controlled server, reflected the full remote response body to the caller through tokenInfo, and sent client_id, client_secret, grant_type=refresh_token, and refresh_token in the request body. This issue is fixed in version 3.1.3. | |
| Title | Flowise: Unauthenticated OAuth2 Refresh Enables Non-Blind SSRF and Secret Exfiltration | |
| Weaknesses | CWE-639 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-08-04T14:20:35.395Z
Updated: 2026-08-04T19:52:53.398Z
Reserved: 2026-08-03T19:54:19.852Z
Link: CVE-2026-69250
Updated: 2026-08-04T19:32:29.514Z
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