CVE-2026-69250

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.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: HIGH
CVSS score: 8.5 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Effective score: 8.5 / 10 HIGH source: CNA overview
CWE(s): CWE-639
Reserved: 2026-08-03
Published: 2026-08-04 14:20 UTC
Last updated: 2026-08-04 19:52 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/69xxx/CVE-2026-69250.json
Linked Threat: CVE-2026-69250 — Flowise: Unauthenticated OAuth2 Refresh Enables Non-Blind SSRF and Secret Exfiltration

Affected products (1)

Vendor	Product	Versions	Platforms
FlowiseAI	Flowise	`< 3.1.3` (affected)	—

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-r745-8hwv-h473 x_refsource_CONFIRM
https://github.com/FlowiseAI/Flowise/commit/da8b251a9a4c59484ceaf6f71df7406aede7bef2 x_refsource_MISC
https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-69250.json.

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                "id": "CVE-2026-69250",
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                    "Automatable": "no"
                  },
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                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-04T19:32:19.780120Z",
                "version": "2.0.3"
              },
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