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14bceb1e0b
* fix(security): harden build-approval artifact identities on v10
Port of pnpm/pnpm#12294 (commit bf1b731ee6) to release/10.
Package-name entries in onlyBuiltDependencies (and allowBuilds) no longer
approve lifecycle scripts for artifacts whose identity a name cannot pin:
git, git-hosted tarball, direct tarball, and local directory dependencies.
To approve such an artifact explicitly, use its peer-suffix-free lockfile
depPath as the key — the GIT_DEP_PREPARE_NOT_ALLOWED hint, pnpm
ignored-builds, and pnpm approve-builds print exactly that key.
- AllowBuild policy functions identify packages by DepPath instead of
caller-supplied name/version. Identity trust is derived from the depPath
shape: a registry-style depPath (name@semver) is a trusted identity.
- The trust is sound because lockfile entries are structurally checked
wherever they are materialized into fetchable resolutions
(pkgSnapshotToResolution) and before rebuild runs scripts: a
registry-style key backed by a git, directory, or git-hosted tarball
resolution is rejected with ERR_PNPM_RESOLUTION_SHAPE_MISMATCH.
- preparePackage requires a pkgResolutionId and gates on the synthesized
name@<resolution id> depPath; scp-style git URLs are normalized to
ssh:// form in resolution ids and the git fetcher reuses
createGitHostedPkgId from the resolver.
- isGitHostedTarballUrl matches case-insensitively and is shared from
@pnpm/lockfile.utils; new removePeersSuffix() in @pnpm/dependency-path
and allowBuildKeyFromIgnoredBuild() in @pnpm/builder.policy.
- pnpm rebuild and approve-builds accept depPath specs for selecting and
approving artifact builds; installs rebuild ignored builds approved by
depPath keys.
- shell-quote is overridden to 1.8.4 (GHSA-w7jw-789q-3m8p /
CVE-2026-9277).
Differences from main: v10 has no lockfile resolution verifier, so the
structural pass lives in pkgSnapshotToResolution and the rebuild loop; the
AllowBuild policy keeps v10's boolean return; the revoked-approval
detection and global-virtual-store hash changes have no v10 counterpart.
* test: serve the direct-tarball fixture from an off-registry origin
The registry mock binds only localhost, so a hard-coded 127.0.0.1 URL is
refused in CI, and a tarball URL on the registry's own origin resolves as
a registry package, which defeats the direct-tarball identity the test
needs. An in-test HTTP server redirecting to the mock provides a separate
origin whose binding the test controls.
* test: approve the git-protocol licenses fixture by its depPath
A git-hosted artifact has an untrusted package identity, so the
ajv-keywords build has to be approved by its depPath. Pin the fixture to
the commit the depPath names.
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- Strict. A package can access only dependencies that are specified in its
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Background
pnpm uses a content-addressable filesystem to store all files from all module directories on a disk. When using npm, if you have 100 projects using lodash, you will have 100 copies of lodash on disk. With pnpm, lodash will be stored in a content-addressable storage, so:
- If you depend on different versions of lodash, only the files that differ are added to the store.
If lodash has 100 files, and a new version has a change only in one of those files,
pnpm updatewill only add 1 new file to the storage. - All the files are saved in a single place on the disk. When packages are installed, their files are linked from that single place consuming no additional disk space. Linking is performed using either hard-links or reflinks (copy-on-write).
As a result, you save gigabytes of space on your disk and you have a lot faster installations!
If you'd like more details about the unique node_modules structure that pnpm creates and
why it works fine with the Node.js ecosystem, read this small article: Flat node_modules is not the only way.
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Getting Started
Benchmark
pnpm is up to 2x faster than npm and Yarn classic. See all benchmarks here.
Benchmarks on an app with lots of dependencies:
