@3fv/prelude-ts — Greenflagged

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

jglanz

Keywords

typescriptfunctional-programmingimmutablecollections

Accepted risks

Findings the reviewer chose to accept rather than block on.

Source	Rule	Reason	Accepted by	When
semgrep	semgrep:etc-passwd-access	AI (semgrep): Fires on a JSDoc code example string, not runtime credential access; stable false positive for this package.	ai	2026/05/27

Versions (showing 3 of 3)

Version	Deps	Published
0.8.42	3 / 22	2026-05-25
0.8.41	3 / 22	2026-05-25
0.8.37	3 / 22	2025-01-21

v0.8.42

1 finding

LOW No provenance attestation provenance

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

v0.8.41

4 findings

HIGH etc-passwd-access: lib/cjs/Future.js:111 semgrep

Accessing /etc/passwd or /etc/shadow — credential harvesting on Linux 109 | * Build a Future from a node-style callback API, for instance: 110 | * > 111 | * Future.ofCallback<string>(cb => fs.readFile('/etc/passwd', 'utf-8', cb)) 112 | */ 113 | static ofCallback(fn) {

HIGH etc-passwd-access: lib/esm/Future.js:108 semgrep

Accessing /etc/passwd or /etc/shadow — credential harvesting on Linux 106 | * Build a Future from a node-style callback API, for instance: 107 | * > 108 | * Future.ofCallback<string>(cb => fs.readFile('/etc/passwd', 'utf-8', cb)) 109 | */ 110 | static ofCallback(fn) {

HIGH etc-passwd-access: src/Future.ts:145 semgrep

Accessing /etc/passwd or /etc/shadow — credential harvesting on Linux 143 | * Build a Future from a node-style callback API, for instance: 144 | * > 145 | * Future.ofCallback<string>(cb => fs.readFile('/etc/passwd', 'utf-8', cb)) 146 | */ 147 | static ofCallback<T>(

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.

v0.8.37

2 findings

HIGH etc-passwd-access: src/Future.ts:145 semgrep

Accessing /etc/passwd or /etc/shadow — credential harvesting on Linux 143 | * Build a Future from a node-style callback API, for instance: 144 | * > 145 | * Future.ofCallback<string>(cb => fs.readFile('/etc/passwd', 'utf-8', cb)) 146 | */ 147 | static ofCallback<T>(

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.