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CVE-2026-42235

CRITICAL · CVSS 9.6 EPSS %0.08 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-05-04T19:16:06.173 · Çekilme zamanı: 2026-06-03T18:00:28.913517+00:00

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Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

GitHub PoC Linkleri

Not: Bu bağlantılar yalnızca güvenlik araştırması ve doğrulama amacıyla listelenmiştir.

CVE
CVE-2026-42235
Severity
CRITICAL
CVSS
9.6
EPSS
%0.08
Java

Orijinal NVD Açıklaması

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an unauthenticated attacker could register a malicious MCP OAuth client with a crafted client_name. If a victim user authorized the OAuth consent dialog and a second user subsequently revoked that access, a toast notification would render the injected script. Clicking the link would execute arbitrary JavaScript in the victim's authenticated n8n browser session, enabling credential and session token theft, workflow manipulation, or privilege escalation. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.