Attestkeep
Sprache: Deutsch
Loslegen

Schwachstellen / CVE-2026-27586

kritisch

CVE-2026-27586

Caddy is an extensible server platform that uses TLS by default. Prior ...

Veröffentlicht Geändert CWE 755
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.

Einstufung nach Quelle

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
GHSA8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut GHSA (hoch).

Beschreibung

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, two swallowed errors in `ClientAuthentication.provision()` cause mTLS client certificate authentication to silently fail open when a CA certificate file is missing, unreadable, or malformed. The server starts without error but accepts any client certificate signed by any system-trusted CA, completely bypassing the intended private CA trust boundary. Any deployment using `trusted_ca_cert_file` or `trusted_ca_certs_pem_files` for mTLS will silently degrade to accepting any system-trusted client certificate if the CA file becomes unavailable. This can happen due to a typo in the path, file rotation, corruption, or permission changes. The server gives no indication that mTLS is misconfigured. Version 2.11.1 fixes the vulnerability.

Betroffene Pakete und behobene Versionen

QuellePaketBehoben in
alpine 3.23caddy2.11.2-r0
alpine 3.24caddy2.11.1-r0
alpine edgecaddy2.11.1-r0
debian 14caddy2.11.2-1
go::GitHub Security Advisory Gogithub.com/caddyserver/caddy/v22.11.1
minimoscaddy2.11.1-r0
rapidfort alpine 3.20caddy2.11.1-r0
rapidfort alpine 3.21caddy2.11.1-r0
rapidfort alpine 3.22caddy2.11.1-r0
rapidfort alpine 3.23caddy2.11.1-r0
rapidfort debian 12caddy0:2.11.2-1
rapidfort debian 13caddy0:2.11.2-1
Alle 17 Einträge aus 17 Quellen zeigen
QuellePaketBehoben in
alpine 3.23caddy2.11.2-r0
alpine 3.24caddy2.11.1-r0
alpine edgecaddy2.11.1-r0
debian 14caddy2.11.2-1
go::GitHub Security Advisory Gogithub.com/caddyserver/caddy/v22.11.1
minimoscaddy2.11.1-r0
rapidfort alpine 3.20caddy2.11.1-r0
rapidfort alpine 3.21caddy2.11.1-r0
rapidfort alpine 3.22caddy2.11.1-r0
rapidfort alpine 3.23caddy2.11.1-r0
rapidfort debian 12caddy0:2.11.2-1
rapidfort debian 13caddy0:2.11.2-1
rapidfort fedora 43caddy2.10.2-9.fc43
rapidfort Oracle Linux 10caddy2.10.2-9.el10_3
rapidfort ubuntu 20.04caddy0:2.11.2-1
rapidfort ubuntu 22.04caddy0:2.11.2-1
rapidfort ubuntu 24.04caddy0:2.11.2-1

Referenzen

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.