CVE-2026-77082

n8n before 1.123.69 , 2.x before 2.33.4 , and 2.34.x before 2.34.1 is affected by a ReDoS vulnerability in the Filter and Switch nodes . The root cause is that user-supplied regex patterns are compiled with new RegExp() and executed synchronously on the worker thread without complexity validation...

CVE-2026-77081 n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are...

CVE-2026-77081 n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are...

CVE-2026-77081 n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are...

CVE-2026-77082 n8n before 1.123.69 ReDoS via Filter and Switch Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contains a regular expression denial of service ReDoS vulnerability in the Filter and Switch nodes, which compile user-supplied regex patterns with new RegExp and execute them synchronously on the worker thread without complexity...

CVE-2026-77082 n8n before 1.123.69 ReDoS via Filter and Switch Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contains a regular expression denial of service ReDoS vulnerability in the Filter and Switch nodes, which compile user-supplied regex patterns with new RegExp and execute them synchronously on the worker thread without complexity...

EUVD-2026-63270

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contains a regular expression denial of service ReDoS vulnerability in the Filter and Switch nodes, which compile user-supplied regex patterns with new RegExp and execute them synchronously on the worker thread without complexity...

CVE-2026-77081

n8n's GraphQL node bypasses allowed-domains policy when Authentication is set to expression mode: with two different credential types attached, only the first credential's domain policy is enforced while both are transmitted, letting an authenticated workflow author exfiltrate a domain-restricted...

CVE-2026-77082 n8n before 1.123.69 ReDoS via Filter and Switch Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contains a regular expression denial of service ReDoS vulnerability in the Filter and Switch nodes, which compile user-supplied regex patterns with new RegExp and execute them synchronously on the worker thread without complexity...

CVE-2026-77080 n8n before 1.123.69 Arbitrary File Read and Write via Snowflake

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an arbitrary file read and write vulnerability in the Snowflake node, which passes free-form Execute Query input, including client-side commands, directly to the Snowflake SDK without applying n8n's file-access restrictions...

CVE-2026-77080 n8n before 1.123.69 Arbitrary File Read and Write via Snowflake

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an arbitrary file read and write vulnerability in the Snowflake node, which passes free-form Execute Query input, including client-side commands, directly to the Snowflake SDK without applying n8n's file-access restrictions...

CVE-2026-77080

The Snowflake node in n8n passes free-form Execute Query input, including client-side commands, directly to the Snowflake SDK without applying n8n's file-access restrictions, enabling arbitrary file read and write on the n8n host. Affected versions: n8n before 1.123.69, 2.x before 2.33.4, and 2.3...

EUVD-2026-63268

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an arbitrary file read and write vulnerability in the Snowflake node, which passes free-form Execute Query input, including client-side commands, directly to the Snowflake SDK without applying n8n's file-access restrictions...

EUVD-2026-63267

n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion reassignment path. When deleting a custom project role with a reassignment target, the code validated only that the target role existed and was project-scoped, performing no project-level authorizati...

CVE-2026-77079

n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion (reassignment) path. The code validated only that the target role existed and was project-scoped, but performed no project-level authorization check . A user holding only the narrow role:manageProjec...

CVE-2026-77079 n8n before 2.34.1 Authorization Bypass via Custom Role Deletion

n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion reassignment path. When deleting a custom project role with a reassignment target, the code validated only that the target role existed and was project-scoped, performing no project-level authorizati...

CVE-2026-77079 n8n before 2.34.1 Authorization Bypass via Custom Role Deletion

n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion reassignment path. When deleting a custom project role with a reassignment target, the code validated only that the target role existed and was project-scoped, performing no project-level authorizati...

CVE-2026-77076

n8n versions before 1.123.69, 2.33.4, and 2.34.1 have a GraphQL node flaw where connection-level errors are re-thrown with raw HTTP client error data containing decrypted credential secrets, persisted in execution run data readable by any authenticated user. CVSS 7.1 HIGH. Patch versions are 1.12...

CVE-2026-77076 n8n before 1.123.69 Credential Leak via GraphQL Node Error

n8n versions before 1.123.69, 2.33.4, and 2.34.1 contain an information disclosure vulnerability in the GraphQL node. When a GraphQL request fails at the connection level, the node re-throws the underlying HTTP client error unchanged instead of wrapping it in n8n's standard error type. That error...

CVE-2026-77077 n8n before 1.123.69 Remote Code Execution via EventEmitter Prototype Pollution

n8n versions before 1.123.69, 2.33.4, and 2.34.1 contain a JavaScript task runner VM sandbox escape. The runner's prototype-freezing routine covers globalThis functions but not internal module constructors such as EventEmitter, allowing an authenticated user with Code node access to exploit...