CVE-2026-27577
n8n: Expression Sandbox Escape Leads to RCE
Summary
Remediation
Upgrade to the fixed version using your package manager.
npm install n8n@2.9.3
npm install n8n@1.123.22
npm install n8n@2.10.1
After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.
Affected Packages (3)
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-94Code InjectionMITRE
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 9.9 score means for each attack dimension.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cpWEB
- https://github.com/n8n-io/n8n/security/advisories/GHSA-vpcf-gvg4-6qwrWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-27577ADVISORY
- https://github.com/n8n-io/n8n/commit/1479aab2d32fe0ee087f82b9038b1035c98be2f6WEB
- https://github.com/n8n-io/n8n/commit/9e5212ecbc5d2d4e6f340b636a5e84be6369882eWEB
- https://docs.n8n.io/hosting/securing/overviewWEB
- https://github.com/n8n-io/n8nPACKAGE
Frequently Asked Questions
- What is CVE-2026-27577?
- n8n: Expression Sandbox Escape Leads to RCE This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.9/10).
- How do I check if my project is affected by CVE-2026-27577?
- CVE-2026-27577 affects n8n. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-27577 and 200,000+ other known vulnerabilities.
Severity & Exploitability
Exploitation is straightforward and causes maximum impact. Patch immediately.
Also Known As
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