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

  - A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when
    using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.
    (CVE-2026-80231)

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

  - libcurl 中的一個缺陷會導致它錯誤地重複使用指定主機名稱的現有 HTTPS 連線設定，即使使用與建立連線時不同的原生 CA 儲存區設定 （「CURLSSLOPT_NATIVE_CA」）也是如此。
    (CVE-2026-80231)

請注意，Nessus 依賴供應商報告的套件存在。

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。

  - libcurl の欠陥により、接続作成時とは異なるネイティブ CA ストア設定(「CURLSSLOPT_NATIVE_CA」)を使用している場合でも、指定されたホスト名に対して既存の HTTPS 接続設定が誤って再利用されます。
    (CVE-2026-80231)

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。

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。

  - libcurl 中的缺陷使其错误地重用给定主机名的现有 HTTPS 连接设置，即使使用的本机 CA 存储设置（“CURLSSLOPT_NATIVE_CA”）与创建该连接时也不同时。
    (CVE-2026-80231)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

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

  - A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when     using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.
    (CVE-2026-80231)

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

An update of the curl package has been released.

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A flaw in libcurl's handling of HTTP/2 Server Push streams, when the parent     handle is set to share connections with other handles, can lead to     use-after-free in the cleanup process.(CVE-2026-18924)

    Successfully using libcurl to do a transfer to a specific HTTP origin     (`hostA`) with **Digest** authentication and then changing the origin to a     different one (`hostB`) for a second transfer, reusing the same handle, makes     libcurl wrongly pass on the `Authorization:` header field meant for `hostA`,     to `hostB`.(CVE-2026-11856)

    When libpsl support is enabled, libcurl fails to enforce the Public Suffix     List boundary check when processing a `Set-Cookie` header where the `Domain`     attribute explicitly matches an origin host that is itself a public suffix     (e.g., `Domain=co.uk` set by `co.uk`).

    Instead of coercing it into a strict host-only cookie, libcurl saves the     cookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is     inappropriately included in subsequent outbound requests or HTTP redirects to     arbitrary sibling subdomains under the same public suffix (e.g.,     `attacker.co.uk`).(CVE-2026-82209)

    libcurl would reuse a previously created connection even when some mTLS config     related option had been changed that should have prohibited reuse.

    libcurl keeps previously used connections in a connection pool for subsequent     transfers to reuse if one of them matches the setup. However, some TLS     settings related to client certificates were left out from the configuration     match checks, making them match too easily. In particular options related to     the private key.(CVE-2026-8932)

    When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable     standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and     `CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on     connections established without a presented server certificate. Bypassing the     pinning check under these disabled-verification conditions allows     unauthenticated connections to succeed when they should be rejected.(CVE-2026-80230)

    A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup     for a given hostname even when using a different Native CA Store setting     (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.(CVE-2026-80231)

    A flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given     hostname using Negotiate authentication, when the initial request is done     using empty credentials. This can make user B's request get sent over user A's     previously authenticated connection.(CVE-2026-19931)

Tenable has extracted the preceding description block directly from the EulerOS curl 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
478412	Echo: curl-8.1.1: security update to 8.1.1+e2curl-8.17.0: security update to 8.17.0+e2curl-8.8.0: security update to 8.8.0+e2	Tenable Cloud Security	Echo Local Security Checks	2026/11/5	2026/11/5	high
478412	Echo: curl-8.1.1: security update to 8.1.1+e2curl-8.17.0: security update to 8.17.0+e2curl-8.8.0: security update to 8.8.0+e2	Tenable Self-Hosted Container Security	Echo Local Security Checks	2026/11/5	2026/11/5	high
342584	Linux Distros 未修補弱點：CVE-2026-80231	Nessus	Misc.	2026/9/3	2026/9/16	high
342584	Linux Distros のパッチ未適用の脆弱性: CVE-2026-80231	Nessus	Misc.	2026/9/3	2026/9/16	high
342584	Linux Distros 未修补的漏洞：CVE-2026-80231	Nessus	Misc.	2026/9/3	2026/9/16	high
342584	Linux Distros Unpatched Vulnerability : CVE-2026-80231	Nessus	Misc.	2026/9/3	2026/9/16	high
375018	Photon OS 5.0: Curl PHSA-2026-5.0-90-1049	Nessus	PhotonOS Local Security Checks	2026/11/2	2026/11/2	critical
376698	EulerOS 2.0 SP12 : curl (EulerOS-SA-2026-4474)	Nessus	Huawei Local Security Checks	2026/11/6	2026/11/6	critical
375012	Photon OS 5.0: Curl PHSA-2026-5.0-91-1008	Nessus	PhotonOS Local Security Checks	2026/11/2	2026/11/2	critical
375029	Photon OS 4.0: Curl PHSA-2026-4.0-1092	Nessus	PhotonOS Local Security Checks	2026/11/2	2026/11/2	critical
375119	Photon OS 5.0: Curl PHSA-2026-5.0-92-1008	Nessus	PhotonOS Local Security Checks	2026/11/2	2026/11/2	critical
376758	EulerOS 2.0 SP12 : curl (EulerOS-SA-2026-4397)	Nessus	Huawei Local Security Checks	2026/11/6	2026/11/6	critical

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