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, 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)

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，virtualenv 的 ScriptMakerCustom 和 pip 在產生 POSIX 主控台指令碼時，會將不完整引號的解譯器路徑傳遞給 distlib ScriptMaker。當路徑包含空格或產生長度超過 127 位元組的 shebang 時，distlib 會發出一個 /bin/sh 包裝函式，其雙引號解譯器路徑仍會展開命令替換和反引號。因此，影響環境目的地的攻擊者可以在使用者稍後執行產生的啟動器時，以使用者的權限執行命令;環境建立和啟動不會觸發命令。現有啟動器無法透過單獨升級 virtualenv 來修復，必須重新產生，而稍後的獨立 pip 安裝或升級可能會重新引入受影響的啟動器，因為 pip 的供應商 distlib 沒有變化。virtualenv 修正在 版本中 21.14.9發布。（CVE-2026-113722）

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

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。在之前的版本 21.14.9中，virtualenv 的 ScriptMakerCustom 和 pip 在生成 POSIX 控制台脚本时将未完全引用的解释器路径传递到 distlib ScriptMaker。当路径包含空格或产生的 shebang 长度超过 127 字节时，distlib 会发出 /bin/sh 封装程序，其双引号解释器路径仍然会扩展命令替换和反撇号。因此，影响环境目标的攻击者可在用户稍后运行生成的启动器时，以用户的权限执行命令;环境创建和激活不会触发命令。单独升级 virtualenv 无法修复现有启动器，必须重新生成，而后续独立 pip 安装或升级可重新引入受影响的启动器，因为 pip 的供应商 distlib 未更改。virtualenv 补丁已在版本 21.14.9.（CVE-2026-113722）

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 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より前では、virtualenv の ScriptMakerCustom と pip は、POSIX コンソールスクリプトを生成する際に、不完全に引用符で囲まれたインタープリターパスを distlib ScriptMaker に渡します。パスにスペースが含まれているか、127 バイトより長い shebang を生成する場合、distlib は /bin/sh ラッパーを発行します。その二重引用符で囲まれたインタープリターパスは、依然としてコマンド置換とバックティックを拡張します。したがって、環境の宛先に影響を与える攻撃者は、生成されたランチャーをユーザーが後で実行するときに、ユーザーの権限でコマンドを実行することができます。環境の作成とアクティブ化はコマンドをトリガーしません。既存のランチャーは virtualenv のアップグレードだけでは修復できず再生成する必要がありますが、pip のベンダー distlib が変更されないため、後で独立して pip をインストールしたりアップグレードしたりすると、影響を受けるランチャーが再導入される可能性があります。virtualenv 修正はバージョン 21.14.9 でリリースされています。(CVE-2026-113722)

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。

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.

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.

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, 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)

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

ID	Name	Product	Family	Published	Updated	Severity
476600	SCA: security update for virtualenv (GHSA-c978-59m8-c77v)	Tenable Cloud Security	SCA Checks	10/22/2026	10/22/2026	high
476600	SCA: security update for virtualenv (GHSA-c978-59m8-c77v)	Tenable Self-Hosted Container Security	SCA Checks	10/22/2026	10/22/2026	high
476709	Chainguard: openstack-rally-2026.1: security update to 4.1.0-r5	Tenable Self-Hosted Container Security	Chainguard Local Security Checks	10/22/2026	10/22/2026	high
476709	Chainguard: openstack-rally-2026.1: security update to 4.1.0-r5	Tenable Cloud Security	Chainguard Local Security Checks	10/22/2026	10/22/2026	high
371049	Linux Distros 未修補弱點：CVE-2026-113722	Nessus	Misc.	10/23/2026	10/30/2026	high
371049	Linux Distros 未修补的漏洞：CVE-2026-113722	Nessus	Misc.	10/23/2026	10/30/2026	high
371049	Linux Distros のパッチ未適用の脆弱性: CVE-2026-113722	Nessus	Misc.	10/23/2026	10/30/2026	high
377956	Amazon Linux 2023 : python3-virtualenv (ALAS2023-2026-3409)	Nessus	Amazon Linux Local Security Checks	11/9/2026	11/9/2026	high
377898	Amazon Linux 2023 : python3.13-virtualenv (ALAS2023-2026-3410)	Nessus	Amazon Linux Local Security Checks	11/9/2026	11/9/2026	high
371049	Linux Distros Unpatched Vulnerability : CVE-2026-113722	Nessus	Misc.	10/23/2026	10/30/2026	high

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