immutability-helper
mutate a copy of data without changing the original source
2
Versions
MIT
License
No
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
andreiglingeanukolodny
Keywords
immutability
Accepted risks
Findings the reviewer chose to accept rather than block on.
| Source | Rule | Reason | Accepted by | When |
|---|---|---|---|---|
| semgrep | semgrep:child-process-import | AI (semgrep): child_process is used only in smoke-test.js, a dev-only integration test script. It is never executed at install time or as a runtime dependency. This is a stable false positive for this package. | ai |
v2.9.1
1 finding
LOW
No provenance attestation
provenance
Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.