is-wsl MIT 3 versions

is-wsl

npm Repository Homepage

Check if the process is running inside Windows Subsystem for Linux (Bash on Windows)

Versions

MIT

License

Install Scripts

Missing

Provenance

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures gitHead linked

Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.

Maintainers

sindresorhus

Keywords

checkwslwindowssubsystemlinuxdetectbashprocessconsoleterminalis

Accepted risks

Findings the reviewer chose to accept rather than block on.

Source	Rule	Reason	Accepted by	When
provenance	no-provenance	AI (provenance): sindresorhus packages consistently lack Sigstore provenance; author's long track record and clean publishing history make this a stable false positive for this package.	ai	2026/04/21

Versions (showing 3 of 3)

Version	Deps	Published
3.1.1	1 / 4	2026-02-15
2.2.0	1 / 5	2020-05-03
1.1.0	0 / 4	2017-04-17

v2.2.0

1 finding

INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v1.1.0

1 finding

INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.