Server-side Request Forgery (SSRF)

Overview n8n-nodes-base is a Base nodes of n8n Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the OAuth2 authorization-code-to-access-token exchange, which issues its request through a separate HTTP client that lacks the SSRF guard applied to the discovery...

CVE-2026-77069: Server-Side Request Forgery (SSRF)

n8n before 1.123.69, 2.33.4, and 2.34.1 contains an SSRF protection bypass in the OAuth2 credential authorization-code-to-access-token exchange. While OAuth2 discovery and dynamic-client-registration requests use n8n's SSRF-protected HTTP client, the token exchange uses a separate client with no...