EUVD-2026-39481

pnpm: Manifest identity spoof satisfies allowBuilds and runs attacker lifecycle...

EUVD-2026-39498

pnpm: Repository config can expand victim environment secrets into registry requests before scripts run...

GHSA-3QHV-2RGH-X77R pnpm: Repository config can expand victim environment secrets into registry requests before scripts run

Maintainer Action Plan This report is ready to review with the shared patch branch. Start with the PR and the expected fixed behavior, then use the detailed exploit narrative below only if you want to replay the original path. - Advisory: CAND-PNPM-122 / GHSA-3qhv-2rgh-x77r - Advisory URL:...

GHSA-RXHJ-4M44-96R4 pnpm Vulnerable to Arbitrary File Write/Delete via Malicious Patch File (Path Traversal)

Summary pnpm's patch application pipeline @pnpm/patch-package performs no path validation on file paths extracted from .patch files. An attacker who contributes a malicious patch file via a pull request can write attacker-controlled content to or delete arbitrary files on the filesystem during pn...

pnpm binds unscoped user-level npm auth credentials to a repository-selected registry

Summary pnpm can send user-level unscoped npm authentication credentials to a registry chosen by a repository-local .npmrc file. In the reproduced case, the user's npm config contains a default registry and an unscoped authToken. The repository does not provide a token-bearing auth line. It only...

GHSA-CJHR-43R9-CFMW pnpm binds unscoped user-level npm auth credentials to a repository-selected registry

Summary pnpm can send user-level unscoped npm authentication credentials to a registry chosen by a repository-local .npmrc file. In the reproduced case, the user's npm config contains a default registry and an unscoped authToken. The repository does not provide a token-bearing auth line. It only...

EUVD-2026-39495

pnpm binds unscoped user-level npm auth credentials to a repository-selected registry...

EUVD-2026-39494

pnpm: Transitive dependency alias path traversal allows project path override via symlink replacement...

GHSA-HWX4-2J3J-G496 pnpm: Transitive dependency alias path traversal allows project path override via symlink replacement

Summary pnpm allows a transitive dependency alias from registry package metadata to contain path traversal segments. During install, pnpm later uses that alias as a filesystem path when linking dependency nodes. As a result, a registry package can cause pnpm install - ignore-scripts to replace...

pnpm: Git Fetch Argument Injection via Lockfile resolution.commit

Summary pnpm passes the lockfile-controlled git resolution.commit value to git fetch without a -- separator or commit-format validation. For git dependencies fetched through the shallow-fetch path, a malicious lockfile can replace the expected 40-character commit hash with a Git option such as...

GHSA-P4XF-RF54-RJ3X pnpm: Git Fetch Argument Injection via Lockfile resolution.commit

Summary pnpm passes the lockfile-controlled git resolution.commit value to git fetch without a -- separator or commit-format validation. For git dependencies fetched through the shallow-fetch path, a malicious lockfile can replace the expected 40-character commit hash with a Git option such as...

EUVD-2026-39490

pnpm: Git Fetch Argument Injection via Lockfile resolution.commit...

pnpm Has an Integrity Check Bypass via Missing Lockfile Integrity Field

Summary pnpm's tarball extraction worker skips integrity verification when the integrity field is absent from the lockfile resolution. If an attacker can both modify pnpm-lock.yaml to remove the integrity: field and cause the referenced registry URL to serve altered package content, pnpm install...

EUVD-2026-39488

pnpm Has an Integrity Check Bypass via Missing Lockfile Integrity Field...

pnpm: Unsafe default behavior breaks integrity check

While it is unclear whether this should be classified as a vulnerability, it is being reported through this channel because the current behavior may represent an unsafe default. Summary pnpm install in non-frozen mode can accept new remote package content after detecting that the downloaded tarba...

EUVD-2026-39489

pnpm: Unsafe default behavior breaks integrity check...

EUVD-2026-39497

pnpm: Tarball hash of GitHub git dependencies is not stored in lockfile...

GHSA-HG3W-7F8C-63HP pnpm: Tarball hash of GitHub git dependencies is not stored in lockfile

Summary A malicious codeload.github.com server can serve whatever tarball it wants and pnpm will install it regardless of the lockfile. Details The lockfile does not store the hash of the dependencies from https://codeload.github.com This means that if this server was compromised or a person's...

CVE-2026-55700

pnpm is a package manager. From 11.3.0 until 11.5.3, pnpm stage download derived a local filename from registry-controlled package name and version fields. A crafted manifest could escape the selected download directory and overwrite another reachable file. The merged fix validates both fields,...

CVE-2026-55697

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can install configDependencies declared in pnpm-workspace.yaml before command dispatch. Before the patch, a repository could declare pacquet or @pnpm/pacquet as a config dependency and pnpm treated that repository-controlled dependency ...