CVE-2026-58661

n8n is affected: older releases (before 2.28.0 and, on the 1.x branch, before 1.123.58) contain a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota does not account for files already written to the shared temporary directory, allowing an authenticat...

CVE-2026-58661 n8n - Disk Space Exhaustion via Data-Table File Upload Endpoint

n8n before 2.28.0 and before 1.123.58 on the 1.x branch contains a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota check does not account for files already written to the shared temporary directory, allowing an authenticated user to repeatedly...

CVE-2026-56354

CVE-2026-56354 affects n8n before 1.123.24, 2.10.4, and 2.12.0 (1.x and 2.x branches). The Form Node contains cross-site scripting and open redirect vulnerabilities caused by unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creat...

EUVD-2026-42887

n8n before 1.123.24, 2.10.4, and 2.12.0 across its 1.x and 2.x branches contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions...

CVE-2026-56354 n8n - Cross-Site Scripting and Open Redirect in Form Node

n8n before 1.123.24, 2.10.4, and 2.12.0 across its 1.x and 2.x branches contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions...

PT-2026-57181

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.28.0 n8n versions prior to 1.123.58 Description An authenticated user can cause disk space exhaustion via the data-table file upload endpoint. The issue occurs because the per-request quota check fails to account for...

@ai-growth/n8n-nodes-wordpress (>=0.2.0, <=0.6.12), @henry2323/n8n-nodes-calendar-tool-wrapper (0.1.4) +38 more potentially affected by CVE-2026-59209 via n8n-core (>=1.0.0, <=1.122.34)

n8n-core NPM version =1.0.0, =0.2.0, =1.0.1, =0.26.0, =0.34.0, =1.0.1, =0.21.8, =1.0.0, =1.0.0, =0.1.0, =1.0.1, =0.3.3, =0.1.3, =0.1.1, =1.2.0, =1.4.1 and more Source cves: CVE-2026-59209 Source advisory: SNYK:JS-N8NCORE-17954281...

@0xlimao/n8n-nodes-ethereum (>=1.0.0, <=1.0.1), @aayshian/n8n-aisensy-ay19 (0.0.1) +111 more potentially affected by CVE-2026-59209 via n8n-core (>=2.0.0, <=2.27.2)

n8n-core NPM version =2.0.0, =1.0.0, =0.0.1, =1.0.0, =0.0.1, =0.0.1, =0.3.6, =0.1.0, =1.0.0, =0.1.4, =1.1.3, =1.1.6 and more Source cves: CVE-2026-59209 Source advisory: SNYK:JS-N8NCORE-17954281...

@n8n/backend-test-utils (1.28.0), @n8n/db (1.28.0) +1 more potentially affected by CVE-2026-59209 via n8n-core (2.28.0)

n8n-core NPM version 2.28.0 is affected by a known vulnerability. The following packages have a transitive dependency on n8n-core and may be impacted: - @n8n/backend-test-utils 1.28.0 - @n8n/db 1.28.0 - @n8n/task-runner 2.28.0 Source cves: CVE-2026-59209 Source advisory: SNYK:JS-N8NCORE-17954281...

Insufficiently Protected Credentials

Overview n8n-nodes-base is a Base nodes of n8n Affected versions of this package are vulnerable to Insufficiently Protected Credentials through the HTTP Request V3 pagination expression handling in packages/nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts and...

Insufficiently Protected Credentials

Overview n8n-core is a Core functionality of n8n Affected versions of this package are vulnerable to Insufficiently Protected Credentials through the HTTP Request V3 pagination expression handling in packages/nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts and...

@n8n/backend-test-utils (>=1.0.0-rc.0, <=1.28.0) potentially affected by CVE-2026-59206 via @n8n/db (>=1.0.0, <=1.28.0)

@n8n/db NPM version =1.0.0, =1.0.0-rc.0, =1.28.0 Source cves: CVE-2026-59206 Source advisory: SNYK:JS-N8NDB-17954287...

User Impersonation

Overview n8n is a n8n Workflow Automation Tool Affected versions of this package are vulnerable to User Impersonation via the token-exchange identity-resolution service in packages/cli/src/modules/token-exchange/services/identity-resolution.service.ts. An attacker can authenticate as another user...

CVE-2026-59206

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated reques...

CVE-2026-59208

n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JWT sub claim and ignored the iss claim, allowing an attacke...

CVE-2026-59209 n8n: Shared Credential Header Leak via HTTP Request Pagination Expression

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated member with use-only editor access to a shared workflow could read credential-populated headers exposed via the $request object inside an HTTP Request node's pagination expression and...

CVE-2026-59209 n8n: Shared Credential Header Leak via HTTP Request Pagination Expression

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated member with use-only editor access to a shared workflow could read credential-populated headers exposed via the $request object inside an HTTP Request node's pagination expression and...

CVE-2026-59206

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated reques...

CVE-2026-59206

n8n is affected by a prototype pollution vulnerability in which an authenticated user with the default workflow:create permission could pollute Object.prototype via a crafted workflow saved, updated, or imported through the workflow API. This corruption could cause unauthenticated requests to be ...

CVE-2026-59206 n8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Project Enumeration

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated reques...