left-pad
String left pad
15
Versions
WTFPL
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
sebmckstevemaowestlac
Keywords
leftpadleftpadpaddingstringrepeat
Accepted risks
Findings the reviewer chose to accept rather than block on.
| Source | Rule | Reason | Accepted by | When |
|---|---|---|---|---|
| npm-metadata | suspicious-initial-version | AI (npm-metadata): Version 0.0.0 is the legitimate historical first release of left-pad, published ~12 years ago. Not a malicious throwaway package. | ai | |
| bogus-package | bogus-package | AI (bogus-package): sebmck is Sebastian McKenzie (Babel creator), a reputable developer. Tiny payload is expected for a minimal string utility. Both signals are false positives for this package. | ai | |
| provenance | publisher-changed | AI (provenance): stevemao is the well-documented, npm-facilitated successor maintainer of left-pad after the 2016 unpublish incident. This transition is public record and not a compromise. | ai | |
| maintainer-change | maintainer-added | AI (maintainer-change): sebmck and stevemao were added as part of the historically documented npm-facilitated maintainer transfer. Legitimate and stable for this package. | ai | |
| source-diff | source-size-tripled | AI (source-diff): Size increase from 209B to 7KB is explained by addition of TypeScript type definitions, benchmark suite, and property-based tests — no injected payload. | ai | |
| license | uncommon-license:WTFPL | AI (license): left-pad has always used WTFPL; this is a stable, known characteristic of the package, not a new risk. | ai |