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。

  - Mistune 之前 3.3.0 在内联链接解析器中包含一个算法复杂性漏洞，允许未经认证的攻击者通过提交长时间的不匹配“[”字符来耗尽 CPU。
    攻击者可发送会触发 O（N^2） parse_link_text和parse_link_label探测的小型 Markdown 负载，每 16 KB 输入占用渲染工作 30+ 秒。（CVE-2026-115352）

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，且廠商未提供可用的修補程式。

  - Mistune before 包含 3.3.0 內嵌連結剖析器中的演算法複雜性弱點，該弱點允許未經驗證的攻擊者提交長時間的不相符的「[」字元，以耗盡 CPU。
    攻擊者可以發送觸發 O（N^2） parse_link_text和parse_link_label探測的小型 Markdown 負載，每 16 KB 輸入佔用渲染工作角色 30+ 秒。（CVE-2026-115352）

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

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。

  - Mistune before 3.3.0 には、インラインリンクパーサーにアルゴリズム複雑性の脆弱性が含まれており、認証されていない攻撃者が、一致しない「[」文字を長時間送信することで CPU を枯渇させる可能性があります。
    攻撃者は、O(N^2) parse_link_text および parse_link_label プローブを発生させる小さなマークダウンペイロードを送信し、16 KB の入力ごとに 30+ 秒間レンダリングワーカーを占有する可能性があります。(CVE-2026-115352)

Nessus は、ベンダーから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。

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-340793a2f1 advisory.

    Update to 3.3.4

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

  - Mistune before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser that     allows unauthenticated attackers to exhaust CPU by submitting long runs of unmatched '[' characters.
    Attackers can send small markdown payloads that trigger O(N^2) parse_link_text and parse_link_label     probing, occupying rendering workers for 30+ seconds per 16 KB input. (CVE-2026-115352)

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-ea39a303cf advisory.

    Update to 3.3.4


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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3386 advisory.

    Mistune before 3.3.0 contains an inefficient algorithmic complexity vulnerability in parse_link_text that     allows remote attackers to cause denial of service through unbalanced square brackets. Attackers can     submit markdown containing long runs of unmatched brackets to mistune.html(), triggering repeated forward     scans that stall worker processes for minutes. (CVE-2026-115347)

    Mistune before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser that     allows unauthenticated attackers to exhaust CPU by submitting long runs of unmatched '[' characters.
    Attackers can send small markdown payloads that trigger O(N^2) parse_link_text and parse_link_label     probing, occupying rendering workers for 30+ seconds per 16 KB input. (CVE-2026-115352)

Tenable has extracted the preceding description block directly from the tested product 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	名前	製品	ファミリー	公開日	更新日	深刻度
371293	Linux Distros 未修补的漏洞：CVE-2026-115352	Nessus	Misc.	2026/10/23	2026/10/28	high
371293	Linux Distros 未修補弱點：CVE-2026-115352	Nessus	Misc.	2026/10/23	2026/10/28	high
371293	Linux Distros のパッチ未適用の脆弱性: CVE-2026-115352	Nessus	Misc.	2026/10/23	2026/10/28	high
376819	Fedora 43 : python-mistune (2026-340793a2f1)	Nessus	Fedora Local Security Checks	2026/11/6	2026/11/6	critical
371293	Linux Distros Unpatched Vulnerability : CVE-2026-115352	Nessus	Misc.	2026/10/23	2026/10/28	high
376834	Fedora 44 : python-mistune (2026-ea39a303cf)	Nessus	Fedora Local Security Checks	2026/11/6	2026/11/6	critical
377958	Amazon Linux 2023 : python3-mistune (ALAS2023-2026-3386)	Nessus	Amazon Linux Local Security Checks	2026/11/9	2026/11/9	high

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