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@microsoft/sp-office-ui-fabric-core

A supported set of Office UI Fabric Core definitions bundled for use in the SharePoint Framework

5
Versions
https://aka.ms/spfx/license
License
No
Install Scripts
Missing
Provenance

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures No source commit

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

microsoft1esmicrosoft-oss-releasesodspnpm

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
source-diff obfuscated-file:dist/office-ui-fabric-core_none_5690e531e1da619d7f0d.js AI (source-diff): Standard webpack AMD bundle loading CSS from Microsoft's SharePoint CDN; expected artifact for this package. ai
dependencies unvetted-dep:office-ui-fabric-core AI (dependencies): office-ui-fabric-core is the explicit purpose of this wrapper package; its inclusion is intentional and stable. ai
phantom-deps phantom-dep:tslib AI (phantom-deps): tslib is a known implicit runtime dependency for TypeScript-compiled packages; stable false positive for this package. ai
phantom-deps phantom-dep:@swc/helpers AI (phantom-deps): SWC helpers are implicit runtime dependencies injected by the build toolchain; stable false positive for this package. ai
phantom-deps phantom-dep:office-ui-fabric-core AI (phantom-deps): This package explicitly wraps office-ui-fabric-core; referenced in config files is expected behavior. ai
bogus-package bogus-package AI (bogus-package): Established Microsoft SPFx component package; sparse README and no keywords are cosmetic issues, not spam indicators. ai

Versions (showing 5 of 5)

Version Deps Published
1.23.0 3 / 4
1.22.2 3 / 4
1.22.1 3 / 4
1.22.0 3 / 4
1.21.1 3 / 4

v1.23.0

2 findings
HIGH New obfuscated file: dist/office-ui-fabric-core_none_5690e531e1da619d7f0d.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.22.1

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.

v1.22.0

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.

v1.21.1

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.