Feed/CVE-2026-48995
CVE-2026-48995MEDIUMCVSS 0.0

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

Published Jun 26, 2026·Updated Jun 26, 2026

NVD Description

### 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 machine configuration was compromised, pnpm would download and install these dependencies. ### PoC ```sh > pnpm -v 10.28.2 ``` Given the following package.json: ```json { "dependencies": { "add": "git://github.com/dsherret/npm-git-dep.git#b3eeb9b" } } ``` This produces a lockfile like so: ```yaml lockfileVersion: '9.0' settings: autoInstallPeers: true excludeLinksFromLockfile: false importers: .: dependencies: add: specifier: git://github.com/dsherret/npm-git-dep.git#b3eeb9b version: https://codeload.github.com/dsherret/npm-git-dep/tar.gz/b3eeb9b packages: add@https://codeload.github.com/dsherret/npm-git-dep/tar.gz/b3eeb9b: resolution: {tarball: https://codeload.github.com/dsherret/npm-git-dep/tar.gz/b3eeb9b} version: 1.0.0 snapshots: add@https://codeload.github.com/dsherret/npm-git-dep/tar.gz/b3eeb9b: {} ``` Notice that there is no hash. The `b3eeb9b` is not sufficient because I can configure my machine to resolve a compromised tarball from that url (I tested it out and pnpm just installs it). ### Impact Anyone relying on github git dependencies.

Affected Packages (1)

pnpmNPM
Fixed in 10.33.4

References

View on NVD Search GitHub Search Google

Get alerted for CVEs like this

Register your stack and get notified within minutes when a matching CVE drops.

Start monitoring free