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@polymer/polymer

15
Versions
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, so a manually published version cannot be tied back to a reviewed commit.

Maintainers

ricticaomarksemarquezsorvellbicknellrusergenicpolymer-devsazakuskevinpschaafjustinfagnani

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
provenance missing-githead AI (provenance): Manual publish by known maintainer of a canonical package; no source-integrity concern. ai
maintainer-change maintainer-added AI (maintainer-change): Org-level maintainer rotation on a long-established first-party package; no behavior change. ai
publish-pattern dormant-publish AI (publish-pattern): Dormancy consistent with slow-moving mature library; diff shows no material change. ai
semgrep semgrep:dynamic-require AI (semgrep): Fires inside vendored mocha test runner, not package code. ai
semgrep semgrep:child-process-import AI (semgrep): Vendored mocha CLI code, not part of shipped runtime behavior. ai
semgrep semgrep:new-function-constructor AI (semgrep): Vendored stacky env-detection utility, benign pattern. ai
semgrep semgrep:eval-usage AI (semgrep): Vendored sinon fake-timers library, standard eval use in test lib. ai
vendored-integrity unresolved-vendored-tree:bower_components/mocha AI (vendored-integrity): Bundled test tooling from repo, not an implant; stable across Polymer versions. ai
vendored-integrity unresolved-vendored-tree:bower_components/polymer AI (vendored-integrity): Self-referential vendored copy from demo/build tooling, benign. ai
dependencies unvetted-dep:@webcomponents/shadycss AI (dependencies): @webcomponents/shadycss is the official ShadyCSS polyfill from the Polymer/Google project — a legitimate and expected dependency for @polymer/polymer across all versions. ai

Versions (showing 15 of 15)

Version Deps Published
3.5.2 1 / 26
3.5.1 1 / 26
3.5.0 1 / 26
3.4.1 1 / 26
3.4.0 1 / 27
3.3.1 1 / 27
3.3.0 1 / 27
3.2.0 1 / 27
3.1.0 1 / 27
3.0.5 1 / 27
3.0.4 1 / 27
3.0.3 1 / 27
3.0.2 1 / 27
3.0.1 1 / 27
3.0.0 1 / 27

v3.5.1

3 findings
HIGH Missing gitHead — previous versions had it provenance

This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: bicknellr.

LOW No provenance attestation provenance

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

INFO Publisher changed: azakus → bicknellr (on 2022-06-03, known maintainer) provenance

This version was published by a different npm account (bicknellr) than the most recent previously approved version (azakus) on 2022-06-03, but bicknellr is listed as a maintainer on prior approved versions (matched on name). This looks like a manual publish by a known maintainer rather than a publisher change. Recorded as INFO for audit trail.

v3.5.0

3 findings
HIGH Missing gitHead — previous versions had it provenance

This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: bicknellr.

LOW No provenance attestation provenance

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

INFO Publisher changed: azakus → bicknellr (on 2022-05-18, known maintainer) provenance

This version was published by a different npm account (bicknellr) than the most recent previously approved version (azakus) on 2022-05-18, but bicknellr is listed as a maintainer on prior approved versions (matched on name). This looks like a manual publish by a known maintainer rather than a publisher change. Recorded as INFO for audit trail.

v3.4.1

3 findings
HIGH Missing gitHead — previous versions had it provenance

This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: polymer-devs.

LOW No provenance attestation provenance

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

INFO Publisher changed: azakus → polymer-devs (on 2020-04-30, known maintainer) provenance

This version was published by a different npm account (polymer-devs) than the most recent previously approved version (azakus) on 2020-04-30, but polymer-devs is listed as a maintainer on prior approved versions (matched on name). This looks like a manual publish by a known maintainer rather than a publisher change. Recorded as INFO for audit trail.

v3.4.0

3 findings
HIGH Missing gitHead — previous versions had it provenance

This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: polymer-devs.

LOW No provenance attestation provenance

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

INFO Publisher changed: azakus → polymer-devs (on 2020-04-27, known maintainer) provenance

This version was published by a different npm account (polymer-devs) than the most recent previously approved version (azakus) on 2020-04-27, but polymer-devs is listed as a maintainer on prior approved versions (matched on name). This looks like a manual publish by a known maintainer rather than a publisher change. Recorded as INFO for audit trail.

v3.3.1

1 finding
LOW No provenance attestation provenance

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

v3.3.0

1 finding
LOW No provenance attestation provenance

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

v3.2.0

1 finding
LOW No provenance attestation provenance

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

v3.1.0

1 finding
LOW No provenance attestation provenance

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

v3.0.5

1 finding
LOW No provenance attestation provenance

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

v3.0.4

1 finding
LOW No provenance attestation provenance

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

v3.0.3

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.

v3.0.2

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.

v3.0.1

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.

v3.0.0

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.