Caddy: MatchPath %xx (escaped-path) branch skips case normalization, enabling path-based route/auth bypass
概要
Caddy: MatchPath %xx (escaped-path) branch skips case normalization, enabling path-based route/auth bypass
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP path request matcher is intended to be case-insensitive, but when the match pattern contains percent-escape sequences (%xx) it compares against the request's escaped path without lowercasing. An attacker can bypass path-based routing and any access controls attached to that route by changing the casing of the request path. Version 2.11.1 contains a fix for the issue.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2026-27587 caddy
- Ubuntu UBUNTU-CVE-2026-27587 caddy
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- web github.com