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CVE-2026-100369— CliInvoke: Argument Injection in Extensibility Runner Factory

Quick assessment

Affected
alastairlundy CliInvoke
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CliInvoke 及其曾用名 的 NuGet 包是用于调用命令行程序并包装可执行进程过程的 .NET 库。 的 2.0.0 至 2.8.4、2.9.0 至 2.9.3、2.10.0 至 2.10.4 版本，以及 3.0.0-alpha.1 至 3.0.0-beta.1 版本；同时， 的 2.0.0-alpha.1 至 2.0.0 版本，均存在参数注入漏洞。该漏洞位于 2.x 分支的 和 3.x 分支的 中。这些工厂类会将运行参数、调用方控制的目标路径以及调用方控制的参数拼接成一个 字符串，当目标路径或参数中包含双

CVSS 8.4 · High EPSS 0.36% · P27
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I. Basic Information for CVE-2026-100369

Vulnerability Information
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Vulnerability Title
CliInvoke: Argument Injection in Extensibility Runner Factory
Source: CVE Program / CVE List V5
Vulnerability Description
CliInvoke and its formerly named `AlastairLundy.CliInvoke` package are .NET libraries for invoking command-line programs and wrapping executable processes. `CliInvoke` versions 2.0.0 through 2.8.4, 2.9.0 through 2.9.3, 2.10.0 through 2.10.4, and 3.0.0-alpha.1 through 3.0.0-beta.1, as well as `AlastairLundy.CliInvoke` versions 2.0.0-alpha.1 through 2.0.0, contain an argument-injection vulnerability in `RunnerProcessFactory` on the 2.x line and `RunnerConfigurationFactory` on the 3.x line. These factories combine runner arguments, a caller-controlled target, and caller-controlled arguments into one `ProcessStartInfo.Arguments` string, allowing a double quote in the target or an argument to terminate an operating-system-level quoted region and inject unintended elements into the runner’s argument vector, potentially resulting in arbitrary command execution when a shell runner is used. The vulnerability is patched in `CliInvoke` versions 2.8.5, 2.9.4, 2.10.5, and 3.0.0-beta.2, and in `AlastairLundy.CliInvoke` version 2.0.2. No complete workaround is available; users unable to upgrade can partially mitigate the issue by removing double quotes from targets and arguments, additionally removing shell metacharacters when using shell runners, or bypassing the vulnerable factory and constructing a `ProcessConfiguration` with an explicit `ArgumentList`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
alastairlundy CliInvoke >= 2.0.0, <= 2.8.4 -
alastairlundy AlastairLundy.CliInvoke >= 2.0.0-alpha.1, <= 2.0.0 -

II. Public POCs for CVE-2026-100369

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III. Intelligence Information for CVE-2026-100369

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Other References for CVE-2026-100369 (1)

IV. Related Vulnerabilities

Same vendor: alastairlundy
Same weakness: CWE-88

V. Comments for CVE-2026-100369

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