← Vulnerability feed

Vulnerability record · CVE-2026-77075 · published 20 August 2026

CVE-2026-77075: N8n code injection vulnerability

N8n · N8n

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An authenticated member can store a malicious value so that when another user opens the affected node in the editor, the injected expression is evaluated as JavaScript in the victim's authenticated session (cross-user script execution).

8.4 CVSS 4.0 High EPSS 0.46% · top 62.7% CWE-94 · Code injection
8.4CVSS 4.0 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
1 Sep 2026Last modified by NVD

Description

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An authenticated member can store a malicious value so that when another user opens the affected node in the editor, the injected expression is evaluated as JavaScript in the victim's authenticated session (cross-user script execution).

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/n8n-io/n8n/security/advisories/GHSA-fh4c-9rr2-p7qc MitigationVendor Advisory
https://www.vulncheck.com/advisories/n8n-before-expression-injection-via-resource-locator Third Party Advisory

Track CVE-2026-77075 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2025-68613n8n workflow expression evaluation RCE for authenticated usersn8n versions from 0.211.0 before 1.120.4, 1.121.1, and 1.122.0 evaluate user-supplied workflow expressions in an execution context that is not suffic…KEVEPSS 99%analysed10.0CVE-2026-21858n8n form workflows allow unauthenticated file accessn8n versions from 1.65.0 up to but not including 1.121.0 fail to properly validate input in certain form-based workflows, letting an attacker read fi…EPSS 78%analysed9.9CVE-2026-1470N8n vulnerabilityn8n contains a critical Remote Code Execution (RCE) vulnerability in its workflow Expression evaluation system. Expressions supplied by authenticated…EPSS 21%9.9CVE-2026-0863N8n code injection vulnerabilityUsing string formatting and exception handling, an attacker may bypass n8n's python-task-executor sandbox restrictions and run arbitrary unrestricted…EPSS 9.4%9.9CVE-2026-21877N8n code injection vulnerabilityn8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code us…EPSS 5.4%9.9CVE-2025-68668N8n vulnerabilityn8n is an open source workflow automation platform. From version 1.0.0 to before 2.0.0, a sandbox bypass vulnerability exists in the Python Code Node…EPSS 13%9.5CVE-2026-27493N8n code injection vulnerabilityn8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, a second-order expression injection vulnerability …EPSS 1.6%9.4CVE-2026-44789N8n prototype pollution vulnerabilityn8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with permission to create or modify …EPSS 0.53%

Source: NIST National Vulnerability Database (record CVE-2026-77075), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.