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CVE-2026-48126

HIGH · CVSS 8.2 EPSS %0.34 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-05-26T17:16:53.360 · Çekilme zamanı: 2026-06-25T12:09:14.409767+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-2026-48126
Severity
HIGH
CVSS
8.2
EPSS
%0.34

Orijinal NVD Açıklaması

Algernon is a small self-contained pure-Go web server. Prior to 1.17.8, when algernon is started with --domain (or --letsencrypt, which silently turns on --domain at engine/flags.go:372), the request handler resolves the served directory by joining the configured --dir with the value of the client-supplied Host header. The join is performed by filepath.Join with no validation, so a Host: .. header walks one level above the document root. Subsequent file resolution then exposes everything in that parent directory — arbitrary file read, full directory listing, and, if any .lua file is present, server-side Lua execution. This vulnerability is fixed in 1.17.8.