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airbnb-js-shims

JS language shims used by Airbnb.

19
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

airbnbenglencioniljharbmilesjschleyfox

Keywords

shimspolyfills

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
provenance publisher-changed AI (provenance): lencioni is a well-established npm publisher (452 approved packages) within the Airbnb ecosystem; the transition from ljharb to lencioni is a legitimate maintainer handoff for this Airbnb org package. ai
maintainer-change maintainer-added AI (maintainer-change): New maintainers (airbnbeng, milesj, schleyfox) are consistent with Airbnb internal team reorganization for this official Airbnb org package. ai
maintainer-change maintainer-removed AI (maintainer-change): Removal of 'airbnb' account alongside addition of airbnbeng and other Airbnb team members reflects an org-level account restructuring, not a hostile takeover. ai
publish-pattern dormant-publish AI (publish-pattern): Shims/polyfills packages are inherently low-churn; 203-day dormancy is expected for a stable utility package. No malicious indicators accompany the resumed activity. ai

Versions (showing 19 of 19)

Version Deps Published
2.2.1 17 / 5
2.2.0 17 / 5
2.1.1 15 / 6
2.1.0 15 / 6
2.0.0 14 / 6
1.7.1 16 / 6
1.7.0 16 / 6
1.6.0 15 / 6
1.5.2 14 / 6
1.5.1 14 / 6
1.5.0 14 / 6
1.4.1 12 / 5
1.4.0 12 / 5
1.3.0 10 / 5
1.2.0 9 / 5
1.1.1 8 / 7
1.1.0 8 / 7
1.0.1 8 / 6
1.0.0 8 / 1

v2.2.1

2 findings
HIGH Publisher changed: ljharb → lencioni (on 2019-11-15) provenance

This version was published by a different npm account than previous versions on 2019-11-15. This could indicate a legitimate maintainer transition or an account compromise.

LOW No provenance attestation provenance

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

v2.2.0

1 finding
LOW No provenance attestation provenance

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

v2.1.1

1 finding
LOW No provenance attestation provenance

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

v2.1.0

1 finding
LOW No provenance attestation provenance

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

v2.0.0

1 finding
LOW No provenance attestation provenance

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

v1.7.1

1 finding
LOW No provenance attestation provenance

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

v1.7.0

1 finding
LOW No provenance attestation provenance

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

v1.6.0

1 finding
LOW No provenance attestation provenance

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

v1.5.2

1 finding
LOW No provenance attestation provenance

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

v1.5.1

1 finding
LOW No provenance attestation provenance

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

v1.5.0

1 finding
LOW No provenance attestation provenance

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

v1.4.1

1 finding
LOW No provenance attestation provenance

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

v1.4.0

1 finding
LOW No provenance attestation provenance

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

v1.3.0

1 finding
LOW No provenance attestation provenance

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

v1.2.0

2 findings
LOW No provenance attestation provenance

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

INFO Publisher changed: lencioni → ljharb (on 2017-07-14) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2017-07-14. This could indicate a legitimate maintainer transition or an account compromise.

v1.1.1

1 finding
LOW No provenance attestation provenance

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

v1.1.0

2 findings
LOW No provenance attestation provenance

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

INFO Publisher changed: ljharb → lencioni (on 2017-02-16) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2017-02-16. This could indicate a legitimate maintainer transition or an account compromise.

v1.0.1

2 findings
LOW No provenance attestation provenance

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

INFO Publisher changed: airbnb → ljharb (on 2016-08-18) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2016-08-18. This could indicate a legitimate maintainer transition or an account compromise.

v1.0.0

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.