CVE-2026-48995

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

State: Published
Severity: 4.8 Medium
Published: Jun 25, 2026
Updated: Jun 26, 2026
Reserved: May 26, 2026

Description

pnpm is a package manager. Prior to 10.33.4 and 11.0.7, a malicious codeload.github.com server can serve whatever tarball it wants and pnpm will install it regardless of the lockfile. 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 machine configuration was compromised, pnpm would download and install these dependencies. This vulnerability is fixed in 10.33.4 and 11.0.7.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U	GitHub_M

Weaknesses

CWE-353 Missing Support for Integrity Check

Affected Products

Product	Versions
pnpmpnpm	< 10.33.4Affected >= 11.0.0, < 11.0.7Affected

References

https://github.com/pnpm/pnpm/security/advisories/GHSA-hg3w-7f8c-63hp

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