GHSA-35Q8-9MJ6-WJMF n8n: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner

Impact n8n's Enterprise SSO instance-role provisioning maps a role claim asserted by the configured Identity Provider IdP to an n8n global role and applies it during authentication. The provisioning path did not prevent assignment of the global:owner role, unlike the token-exchange identity path,...

CVE-2026-64796 Joomla Extension - regularlabs.com - various code injection vectors in Sourcerer extension

Joomla Extension - regularlabs.com - various code injection vectors in Sourcerer extension - Free did not require both the article creator and last modifier to be Super Users before executing article PHP. Pro did not consistently enforce configured CSS, JavaScript and PHP permissions across tags,...

GO-2026-6052 Gitea: Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard) in gitea.dev

Gitea: Fork-PR Actions task can read a third private repository via the collaborative-owner branch missing fork-PR guard in gitea.dev...

Duplicate Advisory: GraphQL Node Bypasses "Allowed HTTP Request Domains" Restriction

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-gq66-9cw5-j5jm. This link is maintained to preserve external references. Original Description n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based...

GHSA-5VFW-JC4P-FJ39 Duplicate Advisory: Member-Level Users Can Execute Other Users' MCP Server Trigger Workflows via Missing OAuth Authorization Check

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-q5xf-xhwf-cwqf. This link is maintained to preserve external references. Original Description n8n before 2.29.8 and 2.30.x before 2.30.1 affected from 2.27.0, when the OAuth 2.1 consent and token-issuance flow w...

GHSA-MWQ7-VCMC-CM4Q Duplicate Advisory: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-35q8-9mj6-wjmf. This link is maintained to preserve external references. Original Description n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO...

Duplicate Advisory: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-35q8-9mj6-wjmf. This link is maintained to preserve external references. Original Description n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO...

CVE-2026-65594

n8n before 2.29.8 and 2.30.x before 2.30.1 affected from 2.27.0, when the OAuth 2.1 consent and token-issuance flow was introduced does not verify that the authenticated user has access to the workflow referenced as the OAuth resource. On instances with at least one active MCP Server Trigger...

CVE-2026-65016

n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role unlike the token-exchang...

CVE-2026-65596

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials Header Auth, Basic Auth, Query Auth, OAuth in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node...

CVE-2026-65596

The CVE-2026-65596 issue affects n8n GraphQL node: it fails to enforce the Allowed HTTP Request Domains restriction on credentials used by GraphQL-based HTTP credentials (Header/Auth, Basic, Query, OAuth). Affected releases are n8n before 1.123.64, 2.29.8, and 2.30.1. An authenticated user who ca...

EUVD-2026-47640

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials Header Auth, Basic Auth, Query Auth, OAuth in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node...

CVE-2026-65596 n8n before 1.123.64 Credential Exfiltration via GraphQL Node

n8n before 1.123.64, 2.29.8, and 2.30.1 fails to enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials Header Auth, Basic Auth, Query Auth, OAuth in the GraphQL node, unlike the HTTP Request node. An authenticated user able to create or edit workflows can point the node...

CVE-2026-65594

n8n (versions affected: before 2.29.8 and 2.30.x before 2.30.1; affected since 2.27.0) has an OAuth 2.1 flow where authentication does not verify that the user has access to the referenced workflow used as the OAuth resource. On systems with an active MCP Server Trigger workflow configured for n8...

CVE-2026-65594 n8n before 2.30.1 Missing OAuth Authorization Check

n8n before 2.29.8 and 2.30.x before 2.30.1 affected from 2.27.0, when the OAuth 2.1 consent and token-issuance flow was introduced does not verify that the authenticated user has access to the workflow referenced as the OAuth resource. On instances with at least one active MCP Server Trigger...

CVE-2026-65594

n8n before 2.29.8 and 2.30.x before 2.30.1 affected from 2.27.0, when the OAuth 2.1 consent and token-issuance flow was introduced does not verify that the authenticated user has access to the workflow referenced as the OAuth resource. On instances with at least one active MCP Server Trigger...

EUVD-2026-47638

n8n before 2.29.8 and 2.30.x before 2.30.1 affected from 2.27.0, when the OAuth 2.1 consent and token-issuance flow was introduced does not verify that the authenticated user has access to the workflow referenced as the OAuth resource. On instances with at least one active MCP Server Trigger...

CVE-2026-65594 n8n before 2.30.1 Missing OAuth Authorization Check

n8n before 2.29.8 and 2.30.x before 2.30.1 affected from 2.27.0, when the OAuth 2.1 consent and token-issuance flow was introduced does not verify that the authenticated user has access to the workflow referenced as the OAuth resource. On instances with at least one active MCP Server Trigger...

CVE-2026-65594 n8n before 2.30.1 Missing OAuth Authorization Check

n8n before 2.29.8 and 2.30.x before 2.30.1 affected from 2.27.0, when the OAuth 2.1 consent and token-issuance flow was introduced does not verify that the authenticated user has access to the workflow referenced as the OAuth resource. On instances with at least one active MCP Server Trigger...

CVE-2026-65016 n8n before 1.123.64, 2.29.8, and 2.30.1 Privilege Escalation via SSO Instance-Role

n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role unlike the token-exchang...