What is CVE-2026-25049?

CVE-2026-25049 is a critical-severity vulnerability in N8n, classified under Improper Control of Dynamically-Managed Code Resources. CVSS score: 9.9/10. Published 2026-02-04.

How severe is CVE-2026-25049?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Is CVE-2026-25049 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in N8n

CVE-2026-25049

n8n is an open source workflow automation platform. Prior to versions 1.123.17 and 2.5.2, an authenticated user with permission to create or modify workflows could abuse crafted expressions in workflow parameters to trigger unintended syst…

EPSS: 0.012 (64.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

N8n
N8n-io N8n — versions < 1.123.17, < 2.5.2

Weakness classification (CWE)

CWE-913 — Improper Control of Dynamically-Managed Code Resources

Public proof-of-concept exploits

0xBlackash/CVE-2026-25049

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25049?: CVE-2026-25049 is a critical-severity vulnerability in N8n, classified under Improper Control of Dynamically-Managed Code Resources. CVSS score: 9.9/10. Published 2026-02-04.
How severe is CVE-2026-25049?: Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2026-25049 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.