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

  - virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the stdlib venv
    creator reads generated pyvenv.cfg with str.splitlines() and merges parsed keys over virtualenv's selected
    configuration. An untrusted caller who influences the destination pathname can include a line-boundary
    character such as U+2028 to inject keys including home and include-system-site-packages, causing path data
    to change configuration structure before final output. Setting include-system-site-packages to true
    weakens environment isolation, while an altered home can change which standard-library files the
    interpreter loads if the attacker also controls that location. The builtin creator does not use this
    readback path. This issue is fixed in version 21.14.9. (CVE-2026-113715)

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。

  - virtualenv 是用于创建隔离的虚拟 Python 环境的工具。在之前 21.14.9，stdlib venv 创建者使用 str.splitlines（） 读取生成的 pyvenv.cfg，并通过 virtualenv 的所选配置合并解析密钥。影响目标路径名的不受信任的调用程序可以包含 U+2028 之类的行边界字符，以注入包括 home 和 include-system-site-packages 在内的密钥，从而导致路径数据在最终输出前更改配置结构。将 include-system-site-packages 设置为 true 会削弱环境隔离，而如果攻击者也控制该位置，则修改的主页可更改解释器加载的标准库文件。内置创建者不使用此回读路径。此问题已在 21.14.9 版本中修复。(CVE-2026-113715)

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。

  - virtualenv 是一個用於建立隔離的虛擬 Python 環境的工具。在之前 21.14.9，stdlib venv 建立器會使用 str.splitlines（） 讀取產生的 pyvenv.cfg，並在 virtualenv 的所選組態上合併剖析的金鑰。影響目的地路徑名稱的不受信任呼叫端可以包含 U+2028 等行邊界字元，以插入包括 home 和 include-system-site-packages 在內的金鑰，導致路徑資料在最終輸出之前變更組態結構。將 include-system-site-packages 設定為 true 會削弱環境隔離，而如果攻擊者也控制該位置，則更改的主頁可能會改變解譯器載入的標準庫檔案。內建建立器不會使用此回讀路徑。21.14.9 版已修正此問題。(CVE-2026-113715)

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。

  - virtualenv は、独立した仮想 Python 環境を作成するためのツールです。21.14.9の前に、stdlib venv 作成者は生成された pyvenv.cfg を str.splitlines() で読み取り、virtualenv の選択された構成で解析済みのキーをマージします。宛先パス名に影響を与える信頼できない呼び出し元が、U+2028 などの行境界文字を含めて、home や include-system-site-packages などのキーを注入し、最終出力前にパスデータに構成構造を変更させる可能性があります。include-system-site-packages を true に設定すると環境の隔離が弱まります。一方、攻撃者がその場所もコントロールする場合、変更されたホームはインタープリターがロードする標準ライブラリファイルを変更することが可能です。ビルトインの作成者は、このリードバックパスを使用しません。この問題はバージョン 21.14.9 で修正されています。(CVE-2026-113715)

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。

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

  - virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the stdlib venv     creator reads generated pyvenv.cfg with str.splitlines() and merges parsed keys over virtualenv's selected     configuration. An untrusted caller who influences the destination pathname can include a line-boundary     character such as U+2028 to inject keys including home and include-system-site-packages, causing path data     to change configuration structure before final output. Setting include-system-site-packages to true     weakens environment isolation, while an altered home can change which standard-library files the     interpreter loads if the attacker also controls that location. The builtin creator does not use this     readback path. This issue is fixed in version 21.14.9. (CVE-2026-113715)

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3410 advisory.

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the stdlib venv     creator reads generated pyvenv.cfg with str.splitlines() and merges parsed keys over virtualenv's selected     configuration. An untrusted caller who influences the destination pathname can include a line-boundary     character such as U+2028 to inject keys including home and include-system-site-packages, causing path data     to change configuration structure before final output. Setting include-system-site-packages to true     weakens environment isolation, while an altered home can change which standard-library files the     interpreter loads if the attacker also controls that location. The builtin creator does not use this     readback path. This issue is fixed in version 21.14.9. (CVE-2026-113715)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, virtualenv's     ScriptMakerCustom and pip pass an incompletely quoted interpreter path to distlib ScriptMaker when     generating POSIX console scripts. When the path contains a space or produces a shebang longer than 127     bytes, distlib emits a /bin/sh wrapper whose double-quoted interpreter path still expands command     substitutions and backticks. An attacker who influences the environment destination can therefore execute     commands with the user's privileges when the user later runs a generated launcher; environment creation     and activation do not trigger the command. Existing launchers are not repaired by upgrading virtualenv     alone and must be regenerated, while a later independent pip installation or upgrade can reintroduce an     affected launcher because pip's vendored distlib is unchanged. The virtualenv fix is released in version     21.14.9. (CVE-2026-113722)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, caller-supplied     prompt text can become executable syntax in the bash activation prompt. An attacker must influence the     value passed to virtualenv, and a user must subsequently activate the environment and draw the prompt.
    This vulnerability is fixed in 21.14.9. (CVE-2026-113723)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.7, the bash     activate script escapes the environment name for only one of the two passes bash makes over PS1, so a     backslash in the name undoes the escaping and a name containing \$(...) runs as commands in the user's     shell each time bash draws the prompt. This issue is fixed in version 21.14.7. (CVE-2026-113725)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.13.0, the bash     activate script that zsh also sources leaves the environment name unescaped; from 21.13.0 until 21.14.4,     it escapes backslashes, dollar signs, and backticks only when BASH_VERSION is set, so zsh receives the raw     value. The script assigns that value to PS1. In zsh with PROMPT_SUBST, an attacker-influenced environment     directory, --prompt, or VIRTUALENV_PROMPT value containing command, parameter, or arithmetic expansion     syntax can therefore execute commands in the user's shell each time the prompt is drawn. A percent sign is     separately interpreted as a zsh prompt escape but does not by itself execute commands. Plain zsh with     PROMPT_SUBST disabled and bash are not affected by this mechanism. This issue is fixed in version 21.14.4.
    (CVE-2026-113726)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.2, FishActivator     inherits ViaTemplateActivator.quote(), which uses POSIX shlex.quote() even though fish interprets     backslashes and single quotes differently. An attacker-influenced environment path, --prompt, or     VIRTUALENV_PROMPT value containing a backslash before a quote can therefore terminate the generated fish     literal and execute command substitution when the user sources activate.fish. This issue is fixed in     version 21.14.2. (CVE-2026-113732)

    virtualenv is a tool for creating isolated virtual python environments. From 20.26.6 until 21.14.2,     ViaTemplateActivator.instantiate_template() replaces placeholders one key at a time across the complete     activation template, so trigger names such as __VIRTUAL_NAME__, __VIRTUAL_ENV__, or __VIRTUAL_PROMPT__     inside an already substituted and quoted environment path or prompt can be replaced during a later pass.
    The later value's quoting can close the earlier literal and execute the remaining path when a user     activates the environment through bash, fish, xonsh, or activate_this.py. The distinct csh prompt-display     token __VIRTUAL_PROMPT_DISPLAY_TCSH__ can instead break the generated script without establishing command     execution. The attacker must influence the destination path or --prompt, and a value without a relevant     placeholder name does not trigger this mechanism. This issue is fixed in version 21.14.2.
    (CVE-2026-113776)

    virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the     bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar     signs or backticks when both promptvars and POSIX mode are disabled during activation. Re-enabling     promptvars, running set -o posix, or starting an interactive child bash that inherits the exported PS1 can     then expand command substitution in the stored VIRTUAL_ENV_PROMPT value and execute commands as the user     who activates the environment. This issue is fixed in version 21.14.13. (CVE-2026-115586)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3409 advisory.

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, the stdlib venv     creator reads generated pyvenv.cfg with str.splitlines() and merges parsed keys over virtualenv's selected     configuration. An untrusted caller who influences the destination pathname can include a line-boundary     character such as U+2028 to inject keys including home and include-system-site-packages, causing path data     to change configuration structure before final output. Setting include-system-site-packages to true     weakens environment isolation, while an altered home can change which standard-library files the     interpreter loads if the attacker also controls that location. The builtin creator does not use this     readback path. This issue is fixed in version 21.14.9. (CVE-2026-113715)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, virtualenv's     ScriptMakerCustom and pip pass an incompletely quoted interpreter path to distlib ScriptMaker when     generating POSIX console scripts. When the path contains a space or produces a shebang longer than 127     bytes, distlib emits a /bin/sh wrapper whose double-quoted interpreter path still expands command     substitutions and backticks. An attacker who influences the environment destination can therefore execute     commands with the user's privileges when the user later runs a generated launcher; environment creation     and activation do not trigger the command. Existing launchers are not repaired by upgrading virtualenv     alone and must be regenerated, while a later independent pip installation or upgrade can reintroduce an     affected launcher because pip's vendored distlib is unchanged. The virtualenv fix is released in version     21.14.9. (CVE-2026-113722)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.9, caller-supplied     prompt text can become executable syntax in the bash activation prompt. An attacker must influence the     value passed to virtualenv, and a user must subsequently activate the environment and draw the prompt.
    This vulnerability is fixed in 21.14.9. (CVE-2026-113723)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.7, the bash     activate script escapes the environment name for only one of the two passes bash makes over PS1, so a     backslash in the name undoes the escaping and a name containing \$(...) runs as commands in the user's     shell each time bash draws the prompt. This issue is fixed in version 21.14.7. (CVE-2026-113725)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.13.0, the bash     activate script that zsh also sources leaves the environment name unescaped; from 21.13.0 until 21.14.4,     it escapes backslashes, dollar signs, and backticks only when BASH_VERSION is set, so zsh receives the raw     value. The script assigns that value to PS1. In zsh with PROMPT_SUBST, an attacker-influenced environment     directory, --prompt, or VIRTUALENV_PROMPT value containing command, parameter, or arithmetic expansion     syntax can therefore execute commands in the user's shell each time the prompt is drawn. A percent sign is     separately interpreted as a zsh prompt escape but does not by itself execute commands. Plain zsh with     PROMPT_SUBST disabled and bash are not affected by this mechanism. This issue is fixed in version 21.14.4.
    (CVE-2026-113726)

    virtualenv is a tool for creating isolated virtual python environments. Prior to 21.14.2, FishActivator     inherits ViaTemplateActivator.quote(), which uses POSIX shlex.quote() even though fish interprets     backslashes and single quotes differently. An attacker-influenced environment path, --prompt, or     VIRTUALENV_PROMPT value containing a backslash before a quote can therefore terminate the generated fish     literal and execute command substitution when the user sources activate.fish. This issue is fixed in     version 21.14.2. (CVE-2026-113732)

    virtualenv is a tool for creating isolated virtual python environments. From 20.26.6 until 21.14.2,     ViaTemplateActivator.instantiate_template() replaces placeholders one key at a time across the complete     activation template, so trigger names such as __VIRTUAL_NAME__, __VIRTUAL_ENV__, or __VIRTUAL_PROMPT__     inside an already substituted and quoted environment path or prompt can be replaced during a later pass.
    The later value's quoting can close the earlier literal and execute the remaining path when a user     activates the environment through bash, fish, xonsh, or activate_this.py. The distinct csh prompt-display     token __VIRTUAL_PROMPT_DISPLAY_TCSH__ can instead break the generated script without establishing command     execution. The attacker must influence the destination path or --prompt, and a value without a relevant     placeholder name does not trigger this mechanism. This issue is fixed in version 21.14.2.
    (CVE-2026-113776)

    virtualenv is a tool for creating isolated virtual python environments. From 21.14.9 until 21.14.13, the     bash bin/activate script can copy an attacker-controlled --prompt value into PS1 without escaping dollar     signs or backticks when both promptvars and POSIX mode are disabled during activation. Re-enabling     promptvars, running set -o posix, or starting an interactive child bash that inherits the exported PS1 can     then expand command substitution in the stored VIRTUAL_ENV_PROMPT value and execute commands as the user     who activates the environment. This issue is fixed in version 21.14.13. (CVE-2026-115586)

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	Name	Product	Family	Published	Updated	Severity
477221	SCA: security update for virtualenv (GHSA-qmx5-4p3x-wvqf)	Tenable Cloud Security	SCA Checks	10/24/2026	10/24/2026	low
477506	Chainguard: nemo-skills: security update to 0.7.0_git20260911-r6	Tenable Cloud Security	Chainguard Local Security Checks	10/27/2026	10/27/2026	low
477221	SCA: security update for virtualenv (GHSA-qmx5-4p3x-wvqf)	Tenable Self-Hosted Container Security	SCA Checks	10/24/2026	10/24/2026	low
477506	Chainguard: nemo-skills: security update to 0.7.0_git20260911-r6	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	10/27/2026	10/27/2026	low
370956	Linux Distros 未修补的漏洞：CVE-2026-113715	Nessus	Misc.	10/23/2026	10/28/2026	low
370956	Linux Distros 未修補弱點：CVE-2026-113715	Nessus	Misc.	10/23/2026	10/28/2026	low
370956	Linux Distros のパッチ未適用の脆弱性: CVE-2026-113715	Nessus	Misc.	10/23/2026	10/28/2026	low
370956	Linux Distros Unpatched Vulnerability : CVE-2026-113715	Nessus	Misc.	10/23/2026	10/28/2026	low
377898	Amazon Linux 2023 : python3.13-virtualenv (ALAS2023-2026-3410)	Nessus	Amazon Linux Local Security Checks	11/9/2026	11/9/2026	high
377956	Amazon Linux 2023 : python3-virtualenv (ALAS2023-2026-3409)	Nessus	Amazon Linux Local Security Checks	11/9/2026	11/9/2026	high

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