https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-07T17:48:23.140438+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-27588 CVE-2026-27588 — Caddy: MatchHost becomes case-sensitive for large host lists (>100), enabling host-based route/auth bypass 2026-10-07T17:48:23.156114+00:00

Affected: caddyserver caddy

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP `host` request matcher is documented as case-insensitive, but when configured with a large host list (>100 entries) it becomes case-sensitive due to an optimized matching path. An attacker can bypass host-based routing and any access controls attached to that route by changing the casing of the `Host` header. Version 2.11.1 contains a fix for the issue.