cfb
Compound File Binary File Format extractor
1
Versions
Apache-2.0
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
sheetjs
Keywords
cfbcompressionoffice
Accepted risks
Findings the reviewer chose to accept rather than block on.
| Source | Rule | Reason | Accepted by | When |
|---|---|---|---|---|
| phantom-deps | phantom-dep:crc-32 | AI (phantom-deps): cfb ships a pre-built bundle (cfb.js) that inlines dependencies; phantom-dep detection is a stable false positive for this package's build pattern. | ai | |
| phantom-deps | phantom-dep:adler-32 | AI (phantom-deps): Same bundled build pattern as crc-32; adler-32 is a legitimate SheetJS dependency inlined into the bundle, not a phantom dep. | ai |
Versions (showing 1 of 1)
| Version | Deps | Published |
|---|---|---|
| 1.2.2 | 2 / 13 |
v1.2.2
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.