CliInvoke.Specializations: Command injection in PowerShell and Cmd shell wrappers
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.
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
- Event
- #4072 · Revision 1
- Added to Heist Feed
- Publisher date