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@tybys/wasm-util

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WASI polyfill for browser and some wasm util

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

toyobayashi

Keywords

wasmwebassemblywasipolyfill

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
source-diff obfuscated-file:lib/cjs/memfs.js AI (source-diff): This is a bundled/minified copy of the memfs library, consistent with the package's WASI polyfill purpose and its memfs-browser devDependency. Not malicious obfuscation. ai
source-diff obfuscated-file:lib/mjs/memfs.mjs AI (source-diff): ESM variant of the same bundled memfs library. Same rationale as the CJS version — legitimate minified bundle output. ai
source-diff net-exec-file:lib/cjs/memfs.js AI (source-diff): False positive: network and eval patterns come from Node.js polyfills within the bundled memfs library, not from dropper/loader logic. Consistent with browser-targeted WASI polyfill. ai
source-diff net-exec-file:lib/mjs/memfs.mjs AI (source-diff): Same false positive rationale as the CJS variant — bundled Node.js polyfill patterns, not malware. ai

Versions (showing 19 of 19)

Version Deps Published
0.10.3 1 / 15
0.10.2 1 / 15
0.10.1 1 / 15
0.10.0 1 / 15
0.9.0 1 / 15
0.8.3 1 / 15
0.8.2 1 / 15
0.8.1 1 / 15
0.8.0 1 / 15
0.7.0 1 / 15
0.6.0 1 / 15
0.5.3 1 / 14
0.5.2 0 / 14
0.5.1 0 / 14
0.5.0 0 / 14
0.4.0 0 / 14
0.3.0 1 / 14
0.2.0 1 / 14
0.1.0 1 / 14

v0.10.3

1 finding
LOW No provenance attestation provenance

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