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@microsoft/fast-element

A library for constructing Web Components

81
Versions
MIT
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-releasesfastsvcjanechueisenbergeffectchrisdholtawentzelnirice

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
provenance publisher-changed AI (provenance): Transition from fastsvc service account to chrisdholt, a known core FAST maintainer at Microsoft. Legitimate org change. ai
provenance missing-githead AI (provenance): Microsoft CI/CD pipeline change; gitHead absence is metadata-only and not a security concern for this well-established Microsoft package. ai
source-diff net-exec-file:dist/fast-element.debug.js AI (source-diff): Bundled Web Components framework code; DOM interaction and Reflect.defineProperty trigger false positive for net+exec heuristic. No actual malicious behavior. ai
source-diff large-new-source-files AI (source-diff): Major version bump (v1→v2) with significant restructuring; large file count increase is expected for this well-established Microsoft package. ai
provenance no-provenance AI (provenance): Microsoft package published via microsoft1es; lack of Sigstore provenance is a best-practice gap, not a security risk for this publisher. ai

Versions (showing 81 of 81)

Version Deps Published
2.10.4 0 / 0
2.10.3 0 / 0
2.10.2 0 / 0
2.10.1 0 / 0
2.10.0 0 / 0
2.9.2 0 / 0
2.9.1 0 / 39
2.9.0 0 / 39
2.8.5 0 / 39
2.8.4 0 / 39
2.8.3 0 / 39
2.8.2 0 / 39
2.8.1 0 / 39
2.8.0 0 / 39
2.7.0 0 / 39
2.6.0 0 / 39
2.5.0 0 / 39
2.4.1 0 / 39
2.4.0 0 / 39
2.3.0 0 / 39
2.2.1 0 / 39
2.2.0 0 / 39
2.1.0 0 / 39
2.0.1 0 / 39
2.0.0 0 / 39
1.14.0 0 / 40
1.13.0 0 / 40
1.12.0 0 / 40
1.11.1 0 / 40
1.11.0 0 / 40
1.10.5 0 / 40
1.10.4 0 / 40
1.10.3 0 / 40
1.10.2 0 / 40
1.10.1 0 / 38
1.10.0 0 / 38
1.9.0 0 / 37
1.8.0 0 / 37
1.7.2 0 / 37
1.7.1 0 / 37
1.7.0 0 / 37
1.6.2 0 / 37
1.6.1 0 / 37
1.6.0 0 / 37
1.5.1 0 / 37
1.5.0 0 / 37
1.4.2 0 / 37
1.4.1 0 / 37
1.4.0 0 / 37
1.3.0 0 / 37
1.2.0 0 / 37
1.1.0 0 / 37
1.0.2 0 / 37
1.0.1 0 / 37
1.0.0 0 / 37
0.22.2 0 / 37
0.22.1 0 / 37
0.22.0 0 / 37
0.21.1 0 / 37
0.21.0 0 / 37
0.20.0 0 / 37
0.19.1 0 / 37
0.19.0 0 / 37
0.18.0 0 / 37
0.17.0 0 / 37
0.16.0 0 / 37
0.15.2 0 / 37
0.15.1 0 / 37
0.15.0 0 / 37
0.14.0 0 / 36
0.13.0 0 / 36
0.12.0 0 / 36
0.11.0 0 / 36
0.10.2 0 / 36
0.10.1 0 / 36
0.10.0 0 / 36
0.9.0 0 / 36
0.8.1 0 / 2
0.8.0 0 / 2
0.7.0 0 / 2
0.6.0 0 / 2

v2.10.4

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.

v2.10.3

2 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: microsoft1es.

LOW No provenance attestation provenance

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

v2.10.2

2 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: microsoft1es.

INFO No provenance attestation provenance

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

v2.10.1

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: microsoft1es.

HIGH Publisher changed: janechu → microsoft1es (on 2026-03-02) provenance

This version was published by a different npm account than previous versions on 2026-03-02. This could indicate a legitimate maintainer transition or an account compromise.

INFO No provenance attestation provenance

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

v2.10.0

2 findings
HIGH Publisher changed: fastsvc → janechu (on 2026-02-17) provenance

This version was published by a different npm account than previous versions on 2026-02-17. This could indicate a legitimate maintainer transition or an account compromise.

INFO No provenance attestation provenance

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

v2.9.2

2 findings
HIGH Publisher changed: fastsvc → janechu (on 2026-02-17) provenance

This version was published by a different npm account than previous versions on 2026-02-17. This could indicate a legitimate maintainer transition or an account compromise.

INFO No provenance attestation provenance

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

v2.9.1

2 findings
HIGH Publisher changed: fastsvc → janechu (on 2025-12-16) provenance

This version was published by a different npm account than previous versions on 2025-12-16. This could indicate a legitimate maintainer transition or an account compromise.

INFO No provenance attestation provenance

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

v2.9.0

1 finding
INFO No provenance attestation provenance

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

v2.8.5

1 finding
INFO No provenance attestation provenance

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

v2.8.4

1 finding
INFO No provenance attestation provenance

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

v2.8.3

1 finding
INFO No provenance attestation provenance

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

v2.8.2

1 finding
INFO No provenance attestation provenance

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

v2.8.1

1 finding
INFO No provenance attestation provenance

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

v2.8.0

1 finding
INFO No provenance attestation provenance

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

v2.7.0

1 finding
INFO No provenance attestation provenance

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

v2.6.0

1 finding
INFO No provenance attestation provenance

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

v2.5.0

1 finding
INFO No provenance attestation provenance

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

v2.4.1

1 finding
INFO No provenance attestation provenance

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

v2.4.0

1 finding
INFO No provenance attestation provenance

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

v2.3.0

1 finding
INFO No provenance attestation provenance

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

v2.2.1

1 finding
INFO No provenance attestation provenance

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

v2.2.0

1 finding
INFO No provenance attestation provenance

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

v2.1.0

2 findings
HIGH New file with network + code execution: dist/fast-element.debug.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

INFO No provenance attestation provenance

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

v2.0.1

2 findings
HIGH New file with network + code execution: dist/fast-element.debug.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

INFO No provenance attestation provenance

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

v2.0.0

3 findings
HIGH Publisher changed: fastsvc → chrisdholt (on 2024-08-19) provenance

This version was published by a different npm account than previous versions on 2024-08-19. This could indicate a legitimate maintainer transition or an account compromise.

HIGH New file with network + code execution: dist/fast-element.debug.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

INFO No provenance attestation provenance

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

v1.14.0

2 findings
INFO No provenance attestation provenance

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

INFO Publisher changed: chrisdholt → fastsvc (on 2024-10-23) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2024-10-23. This could indicate a legitimate maintainer transition or an account compromise.

v1.13.0

1 finding
INFO No provenance attestation provenance

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

v1.12.0

1 finding
INFO No provenance attestation provenance

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

v1.11.1

1 finding
INFO No provenance attestation provenance

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

v1.11.0

1 finding
INFO No provenance attestation provenance

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

v1.10.5

1 finding
INFO No provenance attestation provenance

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

v1.10.4

1 finding
INFO No provenance attestation provenance

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

v1.10.3

1 finding
INFO No provenance attestation provenance

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

v1.10.2

1 finding
INFO No provenance attestation provenance

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

v1.10.1

1 finding
INFO No provenance attestation provenance

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

v1.10.0

1 finding
INFO No provenance attestation provenance

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

v1.9.0

1 finding
INFO No provenance attestation provenance

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

v1.8.0

1 finding
INFO No provenance attestation provenance

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

v1.7.2

1 finding
INFO No provenance attestation provenance

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

v1.7.1

1 finding
INFO No provenance attestation provenance

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

v1.7.0

1 finding
INFO No provenance attestation provenance

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

v1.6.2

1 finding
INFO No provenance attestation provenance

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

v1.6.1

1 finding
INFO No provenance attestation provenance

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

v1.6.0

1 finding
INFO No provenance attestation provenance

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

v1.5.1

2 findings
INFO No provenance attestation provenance

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

INFO Missing gitHead — previous versions had it provenance

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

v1.5.0

1 finding
INFO No provenance attestation provenance

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

v1.4.2

1 finding
INFO No provenance attestation provenance

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

v1.4.1

1 finding
INFO No provenance attestation provenance

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

v1.4.0

2 findings
INFO No provenance attestation provenance

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

INFO Missing gitHead — previous versions had it provenance

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

v1.3.0

2 findings
INFO No provenance attestation provenance

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

INFO Missing gitHead — previous versions had it provenance

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

v1.2.0

1 finding
INFO No provenance attestation provenance

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

v1.1.0

3 findings
INFO No provenance attestation provenance

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

INFO Missing gitHead — previous versions had it provenance

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

INFO Publisher changed: chrisdholt → fastsvc (on 2021-05-11) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2021-05-11. This could indicate a legitimate maintainer transition or an account compromise.

v1.0.2

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v1.0.1

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v1.0.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.22.2

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.22.1

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.22.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.21.1

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.21.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.20.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.19.1

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.19.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.18.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.17.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.16.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.15.2

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.15.1

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.15.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.14.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.13.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.12.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.11.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.10.2

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.10.1

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.10.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.9.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.8.1

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.8.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.7.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.

v0.6.0

1 finding
INFO No provenance attestation provenance

[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.