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CRITICAL

CVE-2026-21858

CVSS v3

10

CRITICAL

Score EPSS

7.7 %

probabilité d’exploitation

CISA KEV

Non

exploitation connue

Exploitation

statut SSVC

Description

n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker, resulting in exposure of sensitive information stored on the system and may enable further compromise depending on deployment configuration and workflow usage. This issue is fixed in version 1.121.0.

Détails techniques

Publiée le
2026-01-08

Questions fréquentes

Qu’est-ce que CVE-2026-21858 ?

n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker, resulting in exposure of sensitive information stored on the system and may enable further compromise depending on deployment configuration and workflow usage. This issue is fixed in version 1.121.0.

CVE-2026-21858 est-elle activement exploitée ?

Aucune exploitation active de CVE-2026-21858 n’est confirmée. Le score EPSS est de 7.7 %, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2026-21858 ?

CVE-2026-21858 a un score de base CVSS v3 de 10 (gravité CRITICAL).

CVE-2026-21858 touche-t-elle votre environnement ?

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