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CliInvoke.Specializations: Command injection in PowerShell and Cmd shell wrappers

Type: advisorySource: Official CVE List1 source record

CliInvoke is a .NET library for invoking command-line programs, and its `CliInvoke.Specializations` packages provide specialized wrappers for shells such as PowerShell and Windows Command Prompt. `CliInvoke.Specializations` versions 2.2.0 through 2.8.4, 2.9.0 through 2.9.3, 2.10.0 through 2.10.4, 3.0.0-alpha.1 through 3.0.0-alpha.4, and 3.0.0-alpha.8 through 3.0.0-alpha.10, as well as `AlastairLundy.CliInvoke.Specializations` versions 1.0.0-rc.1 through 1.6.1.1, contain an OS command injection vulnerability in their PowerShell and Cmd wrappers. The wrappers pass a caller-controlled target and arguments to `pwsh -Command` or `cmd /c` using a single `ProcessStartInfo.Arguments` string, allowing a double quote in untrusted input to break operating-system-level quoting and cause the shell to execute an additional command with the host process's privileges. The vulnerability is patched in `CliInvoke.Specializations` versions 2.8.5, 2.9.4, 2.10.5, and 3.0.0-beta.1, and in `AlastairLundy.CliInvoke.Specializations` version 2.0.2. No complete workaround is available; users unable to upgrade should reject or remove double quotes from target paths and arguments, additionally reject shell metacharacters in versions 2.2.0 through 2.9.2 and 3.0.0-alpha.1 through 3.0.0-alpha.4, or bypass the PowerShell and Cmd wrappers and invoke target processes directly when handling untrusted input.

Announced Source revision 1
Original source ↗

CVE-2026-100368

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-100368

CliInvoke.Specializations

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "alastairlundy",
    "product": "CliInvoke.Specializations",
    "versions": [
      {
        "status": "affected",
        "version": ">= 2.2.0, <= 2.8.4"
      },
      {
        "status": "affected",
        "version": ">= 2.9.0, <= 2.9.3"
      },
      {
        "status": "affected",
        "version": ">= 2.10.0, <= 2.10.4"
      },
      {
        "status": "affected",
        "version": ">= 3.0.0-alpha.1, <= 3.0.0-alpha.4"
      },
      {
        "status": "affected",
        "version": ">= 3.0.0-alpha.8, <= 3.0.0-alpha.10"
      },
      {
        "status": "affected",
        "version": ">= 1.0.0-rc.1, <= 1.6.1.1"
      }
    ]
  }
]
Related CVEs
CVE-2026-100368

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-100368 · High

CliInvoke.Specializations, CliInvoke.Specializations, CliInvoke.Specializations, CliInvoke.Specializations, CliInvoke.Specializations, AlastairLundy.CliInvoke.Specializations

Event
#4072 · Revision 1
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Publisher date
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