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Public proof of conceptFix available

CVE-2026-25049

n8n Has an Expression Escape Vulnerability Leading to RCE

A public proof of concept exists; no exploitation attested.

  • Published2026-02-04
  • Fixed in2.5.2 · 1.123.17
  • WeaknessCWE-913

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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 system command execution on the host running n8n. This issue has been patched in versions 1.123.17 and 2.5.2.

Timeline

dates in UTC
  1. 2026-02-0417:16CVE publishedNVD

Versions per branch

NVD · OSV
N8n
BranchAffectedFixed in
2.x≥ 2.0.0, < 2.5.22.5.2
1.123< 1.123.171.123.17

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • n8n-io n8n
    Affected
    • = < 1.123.17no fix stated
    • = < 2.5.2no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-02-04

Fix

  1. Update N8n to 2.5.2 · 1.123.17

Advisories and patches

Detection

read 2026-11-09 09:29 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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:X/V:X/RE:X/U:X
Published
2026-02-04
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-6cqr-8cfr-67f8

Frequently asked questions

What is 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 system command execution on the host running n8n. This issue has been patched in versions 1.123.17 and 2.5.2.

Is CVE-2026-25049 actively exploited?

Active exploitation of CVE-2026-25049 has not been confirmed. Its EPSS score was 1.6% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-25049?

CVE-2026-25049 has a CVSS v3 base score of 9.9 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

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Sources for this record