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reflect-metadata

Polyfill for Metadata Reflection API

19
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

rbuckton

Keywords

decoratormetadatajavascriptreflect

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
source-diff net-exec-file:temp/Reflect.js AI (source-diff): temp/Reflect.js is the compiled TypeScript output of the Reflect metadata polyfill; no actual network calls or malicious code execution present. ai
provenance no-provenance AI (provenance): Package predates Sigstore provenance; publisher is long-established Microsoft engineer with strong track record. ai
source-diff net-exec-file:test/Reflect.js AI (source-diff): Core polyfill code with license URL strings and dynamic patterns; not a dropper. Standard for this metadata reflection library. ai
semgrep semgrep:child-process-import AI (semgrep): child_process.spawn in gulpfile.js is standard gulp build tooling, not runtime code. ai
source-diff large-new-source-files AI (source-diff): Build system restructuring adding tests/docs is expected for this established package. ai

Versions (showing 19 of 19)

Version Deps Published
0.2.2 0 / 15
0.2.1 0 / 15
0.2.0 0 / 15
0.1.14 0 / 15
0.1.13 0 / 15
0.1.12 0 / 15
0.1.10 0 / 15
0.1.9 0 / 1
0.1.8 0 / 1
0.1.7 0 / 1
0.1.6 0 / 1
0.1.5 0 / 1
0.1.4 0 / 1
0.1.3 0 / 1
0.1.2 0 / 1
0.1.1 0 / 1
0.1.0 0 / 1
0.0.3 0 / 1
0.0.2 0 / 1

v0.2.1

1 finding
LOW No provenance attestation provenance

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

v0.2.0

1 finding
LOW No provenance attestation provenance

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

v0.1.14

1 finding
LOW No provenance attestation provenance

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

v0.1.13

1 finding
INFO No provenance attestation provenance

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

v0.1.12

1 finding
INFO No provenance attestation provenance

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

v0.1.10

2 findings
HIGH New file with network + code execution: test/Reflect.js source-diff

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

LOW No provenance attestation provenance

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

v0.1.9

1 finding
INFO No provenance attestation provenance

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

v0.1.8

1 finding
LOW No provenance attestation provenance

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

v0.1.7

1 finding
INFO No provenance attestation provenance

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

v0.1.6

1 finding
INFO No provenance attestation provenance

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

v0.1.5

2 findings
HIGH New file with network + code execution: temp/Reflect.js source-diff

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

LOW No provenance attestation provenance

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

v0.1.4

1 finding
LOW No provenance attestation provenance

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

v0.1.3

1 finding
INFO No provenance attestation provenance

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

v0.1.2

1 finding
LOW No provenance attestation provenance

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

v0.1.1

1 finding
INFO No provenance attestation provenance

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

v0.1.0

1 finding
INFO No provenance attestation provenance

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

v0.0.3

1 finding
LOW No provenance attestation provenance

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

v0.0.2

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.