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Beveilingsadvies; NCSC-2026-0049 [1.0.0]
- Beveiligingsadvies
- NCSC-2026-0049 [1.0.0]
- Publicatie
- 09-02-2026 11:39 (Europe/Amsterdam)
- Prioriteit
- Normaal
- Betreft
- Kwetsbaarheden verholpen in n8n
Kenmerken
- Improper Input Validation
- Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
- Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
- Exposure of Sensitive Information to an Unauthorized Actor
- Time-of-check Time-of-use (TOCTOU) Race Condition
- Unrestricted Upload of File with Dangerous Type
- Exposure of Resource to Wrong Sphere
- Protection Mechanism Failure
- Improper Control of Dynamically-Managed Code Resources
Omschrijving
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.
De kwetsbaarheden omvatten onder andere het gebruik van Buffer.allocUnsafe() en Buffer.allocUnsafeSlow(), wat kan leiden tot informatie openbaarmaking. Daarnaast zijn er kwetsbaarheden in de expressie-evaluatiefuncties die geauthenticeerde gebruikers in staat stellen om ongewenste systeemcommando's uit te voeren. Er zijn ook Cross-site Scripting (XSS) kwetsbaarheden ontdekt in de webhook-responsverwerking en de markdown-renderingcomponent, die kunnen leiden tot sessieovername. Verder zijn er kwetsbaarheden in de bestandsaccesscontrols en de Git-node, die het mogelijk maken voor geauthenticeerde gebruikers om gevoelige bestanden te lezen en willekeurige commando's uit te voeren. Een andere kwetsbaarheid stelt ongeauthenticeerde aanvallers in staat om workflows te exploiteren die geüploade bestanden via SSH verwerken, wat kan leiden tot remote code execution. Bovendien is er een kwetsbaarheid in de Merge-node's SQL Query-modus, en in de Python Code-node die het mogelijk maakt om de sandbox-omgeving te ontsnappen. Tot slot is er een command injection-kwetsbaarheid in de community package installatie.
Oplossingen
n8n heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Referenties
- https://github.com/advisories/GHSA-49mx-fj45-q3p6
- https://github.com/advisories/GHSA-6cqr-8cfr-67f8
- https://github.com/advisories/GHSA-7c4h-vh2m-743m
- https://github.com/advisories/GHSA-825q-w924-xhgx
- https://github.com/advisories/GHSA-8398-gmmx-564h
- https://github.com/advisories/GHSA-9g95-qf3f-ggrw
- https://github.com/advisories/GHSA-gfvg-qv54-r4pc
- https://github.com/advisories/GHSA-hv53-3329-vmrm
- https://github.com/advisories/GHSA-m82q-59gv-mcr9
- https://github.com/advisories/GHSA-qpq4-pw7f-pp8w
CVE's
- CVE-2025-61917 - CVSS (v3) 7.7
- CVE-2026-25049 - CVSS (v4) 9.4
- CVE-2026-25051 - CVSS (v4) 8.5
- CVE-2026-25052 - CVSS (v4) 9.4
- CVE-2026-25053 - CVSS (v4) 9.4
- CVE-2026-25054 - CVSS (v4) 8.5
- CVE-2026-25055 - CVSS (v4) 7.1
- CVE-2026-25056 - CVSS (v4) 9.4
- CVE-2026-25115 - CVSS (v4) 9.4
- CVE-2026-21893 - CVSS (v4) 9.4
Producten
N8N
Disclaimer
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.