There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's FastCGI
    path splitting logic computes the split index on a lowercased copy of the request path and then uses that
    byte index to slice the original path. This is unsafe for Unicode because `strings.ToLower()` can change
    UTF-8 byte length for some characters. As a result, Caddy can derive an incorrect
    `SCRIPT_NAME`/`SCRIPT_FILENAME` and `PATH_INFO`, potentially causing a request that contains `.php` to
    execute a different on-disk file than intended (path confusion). In setups where an attacker can control
    file contents (e.g., upload features), this can lead to unintended PHP execution of non-.php files
    (potential RCE depending on deployment). Version 2.11.1 fixes the issue. (CVE-2026-27590)

  - Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path
    sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related
    security protections. It affects users with specific Caddy and environment configurations. Version 2.11.1
    fixes the issue. (CVE-2026-27585)

  - 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.
    (CVE-2026-27586)

  - 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. (CVE-2026-27587)

  - 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. (CVE-2026-27588)

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the local caddy
    admin API (default listen `127.0.0.1:2019`) exposes a state-changing `POST /load` endpoint that replaces
    the entire running configuration. When origin enforcement is not enabled (`enforce_origin` not
    configured), the admin endpoint accepts cross-origin requests (e.g., from attacker-controlled web content
    in a victim browser) and applies an attacker-supplied JSON config. This can change the admin listener
    settings and alter HTTP server behavior without user intent. Version 2.11.1 contains a fix for the issue.
    (CVE-2026-27589)

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - Caddy 是默认使用 TLS 的可扩展服务器平台。在版本之前 2.11.1，本地caddy管理API（默认监听“127.0.0.1：2019”）会暴露一个改变状态的“POST /load”端点，替换整个正在运行的配置。当未启用源代码强制（未配置“enforce_origin”）时，管理员端点会接受跨源请求（例如来自受攻击者控制的浏览器中网页内容的请求），并应用攻击者提供的JSON配置。这可能会改变管理员监听器的设置，并在用户意图下改变HTTP服务器的行为。版本 2.11.1 包含了该问题的修复。
    (CVE-2026-27589)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - Caddy 是預設使用 TLS 的可擴充伺服器平台。在版本 2.11.1之前，本地 caddy 管理 API（預設 listen '127.0.0.1：2019'）會暴露一個改變狀態的「POST /load」端點，取代整個執行中的設定。當未啟用來源強制執行（未設定「enforce_origin」）時，管理員端點會接受跨來源請求（例如來自攻擊者控制的瀏覽器網頁內容），並套用攻擊者提供的 JSON 設定。這可能會改變管理員監聽器的設定，並在沒有使用者意圖的情況下改變 HTTP 伺服器的行為。版本 2.11.1 包含該問題的修正。
    (CVE-2026-27589)

請注意，Nessus 依賴供應商報告的套件存在。

リモートの Fedora 43 ホストには、FEDORA-2026-3dc324bd9a のアドバイザリに記載された複数の脆弱性の影響を受けるパッケージがインストールされています。

    caddy 本体およびベンダーライブラリにわたる 22 件の CVE を解決するセキュリティアップデート。

Tenable は、前述の記述ブロックを Fedora セキュリティアドバイザリから直接抽出しています。

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションが自己報告するバージョン番号にのみ依存していることに注意してください。

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - Caddy は、デフォルトで TLS を使用する拡張可能なサーバープラットフォームです。バージョン 2.11.1以前は、ローカルのcaddy管理者API(デフォルトのリスニング「127.0.0.1:2019」)が、実行中の構成全体を置き換える状態を変更する「POST /load」エンドポイントを公開していました。オリジン強制が有効でない場合(「enforce_origin」設定されていない)、管理者エンドポイントはクロスオリジンリクエスト(例:被害者ブラウザ内の攻撃者制御ウェブコンテンツからのもの)を受け付け、攻撃者が提供したJSON設定を適用します。これにより管理者リスナーの設定が変更され、ユーザーの意図なしにHTTPサーバーの挙動が変わることがあります。バージョン 2.11.1 にはこの問題の修正が含まれています。
    (CVE-2026-27589)

Nessus は、ベンダーによって報告されたパッケージの存在に依存していることに注意してください。

リモートの Fedora 44 ホストには、FEDORA-2026-950cac64f2 のアドバイザリに記載された複数の脆弱性の影響を受けるパッケージがインストールされています。

    caddy 本体およびベンダーライブラリにわたる 17 件の CVE を解決するセキュリティアップデート。

Tenable は、前述の記述ブロックを Fedora セキュリティアドバイザリから直接抽出しています。

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションが自己報告するバージョン番号にのみ依存していることに注意してください。

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the local caddy     admin API (default listen `127.0.0.1:2019`) exposes a state-changing `POST /load` endpoint that replaces     the entire running configuration. When origin enforcement is not enabled (`enforce_origin` not     configured), the admin endpoint accepts cross-origin requests (e.g., from attacker-controlled web content     in a victim browser) and applies an attacker-supplied JSON config. This can change the admin listener     settings and alter HTTP server behavior without user intent. Version 2.11.1 contains a fix for the issue.
    (CVE-2026-27589)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-950cac64f2 advisory.

    Security update resolving 17 CVEs across both caddy itself and its vendored libraries.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3dc324bd9a advisory.

    Security update resolving 22 CVEs across both caddy itself and its vendored libraries.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
439411	Alpine: caddy: security update to 2.11.2-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	2026/3/28	2026/7/2	critical
439411	Alpine: caddy: security update to 2.11.2-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	2026/3/28	2026/7/2	critical
438004	SCA: security update for github.com/caddyserver/caddy/v2 (GHSA-879p-475x-rqh2)	Tenable Cloud Security	SCA Checks	2026/2/27	2026/7/2	high
438004	SCA: security update for github.com/caddyserver/caddy/v2 (GHSA-879p-475x-rqh2)	Tenable Self-Hosted Container Security	SCA Checks	2026/2/27	2026/7/2	high
299979	Linux Distros 未修补的漏洞：CVE-2026-27589	Nessus	Misc.	2026/2/26	2026/8/1	high
299979	Linux Distros 未修補的弱點：CVE-2026-27589	Nessus	Misc.	2026/2/26	2026/8/1	high
324614	Fedora 43 : caddy (2026-3dc324bd9a)	Nessus	Fedora Local Security Checks	2026/7/1	2026/7/1	critical
299979	Linux Distros のパッチ未適用の脆弱性: CVE-2026-27589	Nessus	Misc.	2026/2/26	2026/8/1	high
324621	Fedora 44 : caddy (2026-950cac64f2)	Nessus	Fedora Local Security Checks	2026/7/1	2026/7/1	critical
299979	Linux Distros Unpatched Vulnerability : CVE-2026-27589	Nessus	Misc.	2026/2/26	2026/8/1	high
324621	Fedora 44 : caddy (2026-950cac64f2)	Nessus	Fedora Local Security Checks	2026/7/1	2026/7/1	critical
324614	Fedora 43 : caddy (2026-3dc324bd9a)	Nessus	Fedora Local Security Checks	2026/7/1	2026/7/1	critical

检测

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