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CVE-2026-56274

CRITICAL · CVSS 9.9 EPSS %2.68 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-06-23T13:16:45.083 · Çekilme zamanı: 2026-06-30T18:30:01.234255+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

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CVE
CVE-2026-56274
Severity
CRITICAL
CVSS
9.9
EPSS
%2.68
Docker

Orijinal NVD Açıklaması

Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker with a Flowise account of any role, or API access with view/update permissions for chatflows, can configure a malicious MCP server to bypass the validateCommandFlags blocklist (for example, 'docker build' is not blocked, and 'npx --yes' is not blocked while only '-y' is) and the validateArgsForLocalFileAccess checks, resulting in execution of arbitrary commands on the Flowise host.