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CVE-2026-55455

CRITICAL · CVSS 9.1 EPSS %0.22 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-06-24T22:16:49.137 · Çekilme zamanı: 2026-06-30T18:33:00.813600+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-2026-55455
Severity
CRITICAL
CVSS
9.1
EPSS
%0.22

Orijinal NVD Açıklaması

Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 2.1, the outbound HTTP host filter applied by WebClientUtils (used by the REST API and GraphQL datasource plugins) validates hosts against an exact-match string denylist. The comprehensive address-class check (loopback, any-local, link-local, fc00::/7) exists only on a separate code path used by SMTP, not by the HTTP plugin path. As a result, an authenticated user can craft outbound requests that reach loopback-bound services inside the container. This vulnerability is fixed in 2.1.