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CVE-2026-50021

high

pnpm is a package manager.

Vendor / product: Pnpm — pnpm

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, 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 --frozen-lockfile can install the altered package without an integrity error. npm's npm ci enforces integrity by default; pnpm's behavior of silently skipping verification is a pnpm-specific fail-open gap. This vulnerability is fixed in 10.34.0 and 11.4.0.

CVSS
8.1
8.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-06-25 18:16
Modified: 2026-11-03 23:17
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-11-03 23:24 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

pnpm / pnpm <10.34.0, ≥11.0.0 <11.4.0

Weakness classification (CWE)

CWE-354

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/pnpm/pnpm/security/advisories/GHSA-q6j5-fjx5-2mc3
Vendor advisory: https://github.com/pnpm/pnpm/security/advisories/GHSA-q6j5-fjx5-2mc3
Patch / mitigation: https://github.com/pnpm/pnpm/security/advisories/GHSA-q6j5-fjx5-2mc3
Patch / mitigation: https://github.com/pnpm/pnpm/security/advisories/GHSA-q6j5-fjx5-2mc3

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-03 23:24 UTC · record ↗

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