← Home

@yarnpkg/core

7
Versions
License
No
Install Scripts
Verified
Provenance

Supply chain provenance

Status for the latest visible version.

SLSA provenance attestation npm registry signatures gitHead linked

Maintainers

arcanisyarnbot

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
phantom-deps phantom-dep:@types/semver AI (phantom-deps): TypeScript types loaded by convention; stable for this package. ai
phantom-deps phantom-dep:@types/treeify AI (phantom-deps): TypeScript types loaded by convention; stable for this package. ai
semgrep semgrep:etc-passwd-access AI (semgrep): The match is inside a comment explaining why absolute paths are blocked — not actual credential access. ai
semgrep semgrep:env-bulk-read AI (semgrep): Configuration library reads YARN_* prefixed env vars; expected and documented behavior. ai
typosquat typosquat.levenshtein:cors AI (typosquat): @yarnpkg/core is the official Yarn package manager core; scoped package, not a typosquat of cors. ai
semgrep semgrep:base64-decode AI (semgrep): Brotli-compressed bundled worker script; standard Yarn Berry architecture for embedding zip worker. ai
semgrep semgrep:eval-usage AI (semgrep): eval('require') is a well-known bundler workaround to preserve dynamic require; not arbitrary code execution. ai
semgrep semgrep:env-spread AI (semgrep): Package manager legitimately passes environment to child processes; stable pattern for this package. ai

Versions (showing 7 of 7)

Version Deps Published
4.8.0 26 / 18
4.7.0 26 / 18
4.6.0 26 / 18
4.5.0 26 / 19
4.4.4 26 / 19
4.4.3 26 / 19
4.4.2 26 / 20

v4.8.0

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v4.7.0

4 findings
HIGH typosquat.levenshtein: Possible typosquat of 'cors' typosquat

Package name '@yarnpkg/core' is 1 edit(s) away from popular package 'cors'.

HIGH env-spread: lib/scriptUtils.js:219 semgrep

Spreading entire process.env into an object — may capture all secrets Source: https://github.com/yarnpkg/berry/blob/38ebf0014ba8c0356168d4bbd23c09dbb2bdc9ba/lib/scriptUtils.js#L219 217 | !packageManagerSelection?.packageManagerField; 218 | await fslib_2.xfs.mktempPromise(async (binFolder) => { > 219 | const env = await makeScriptEnv({ binFolder, ignoreCorepack, baseEnv: { ...process.env, COREPACK_ENABLE_ 220 | const workflows = new Map([ 221 | [PackageManager.Yarn1, async () => {

HIGH etc-passwd-access: lib/tgzUtils.js:113 semgrep

Accessing /etc/passwd or /etc/shadow — credential harvesting on Linux Source: https://github.com/yarnpkg/berry/blob/38ebf0014ba8c0356168d4bbd23c09dbb2bdc9ba/lib/tgzUtils.js#L113 111 | async function extractArchiveTo(tgz, targetFs, { stripComponents = 0, prefixPath = fslib_1.PortablePath.dot } = {}) { 112 | function ignore(entry) { > 113 | // Disallow absolute paths; might be malicious (ex: /etc/passwd) 114 | if (entry.path[0] === `/`) 115 | return true;

INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v4.6.0

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v4.5.0

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v4.4.4

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.

v4.4.3

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v4.4.2

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.