CVE-2026-25049
criticalpriority · attend · 51EPSS 0.016 · 75 %ileexploit · PoCDEEUNLRUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.6–9.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (2)
Public proof-of-concept and weaponised exploit code.
- 0xBlackash/CVE-2026-25049CVE-2026-25049PoC · poc_in_github
- otakuliu/Expression-Sandbox-Escape-Simulation-Lab有关CVE-2026-25049做了一个模拟沙盒来理解PoC · poc_in_github
affected products (35)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0049Kwetsbaarheden verholpen in n8nNL2026-02-09csaf · ncsc_nlNL
n8n heeft kwetsbaarheden verholpen in versies 1.114.3, 1.115.0, 1.123.17, 2.5.2, 1.122.5, 1.123.2, 1.123.18, 2.5.0, 1.123.10, 2.5.0, 2.2.1, 1.123.9, 1.123.12, 2.4.0, 1.118.0, 2.4.0, 2.4.8, en 1.120.3.
- WID-SEC-W-2026-0318n8n: Mehrere SchwachstellenDeutsch2026-02-04csaf · cert_bundDE
Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in n8n ausnutzen, um beliebigen Code auszuführen, sich erhöhte Berechtigungen zu verschaffen, Cross-Site-Scripting-Angriffe durchzuführen und vertrauliche Informationen offenzulegen. Über einige dieser Schwachstellen sind weitere Angriffe möglich, wie beispielsweise die Übernahme von Konten, das Hijacking von Sitzungen und die vollständige Kompromittierung des Systems.
- GHSA-6cqr-8cfr-67f8n8n Has Expression Escape Vulnerability Leading to RCE2026-02-04ghsa · osvUS
### Impact Additional exploits in the expression evaluation of n8n have been identified and patched following [CVE-2025-68613](https://github.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cp). 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. ### Patches The issue has been fixed in n8n versions 1.123.17 and 2.5.2. Users should upgrade to these versions or later to remediate the vulnerability. ### Workarounds If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Limit workflow creation and editing permissions to fully trusted users only. - Deploy n8n in a hardened environment with restricted operating system privileges and network access to reduce the impact of potential exploitation. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures. ### Resources - Best practices for [securing n8n](https://docs.n8n.io/hosting/securing/overview/) - Initial vulnerability advisory: [CVE-2025-68613](https://github.com/n8n-io/n8n/security/advisories/GHSA-v98v-ff95-f3cp) --- n8n has adopted CVSS 4.0 as primary score for all security advisories. CVSS 3.1 vector strings are provided for backward compatibility. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-25049cnnvd
- https://github.com/n8n-io/n8n/commit/7860896909b3d42993a36297f053d2b0e633235dcnnvd
- https://github.com/n8n-io/n8n/commit/936c06cfc1ad269a89e8ef7f8ac79c104436d54bcnnvd
- https://github.com/n8n-io/n8n/releasesPatchcnnvd
- https://github.com/n8n-io/n8n/security/advisories/GHSA-6cqr-8cfr-67f8cnnvd
- https://github.com/n8n-io/n8n/commit/7860896909b3d42993a36297f053d2b0e633235denisa_euvd
- https://github.com/n8n-io/n8n/commit/936c06cfc1ad269a89e8ef7f8ac79c104436d54benisa_euvd
- https://github.com/n8n-io/n8n/security/advisories/GHSA-6cqr-8cfr-67f8enisa_euvd
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