medium6.5
CVE-2026-50017
pnpm binds unscoped user-level npm auth credentials to a repository-selected registry
Impact
pnpm is a package manager. Prior to 10.34.0 and 11.4.0, 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 sets registry= to a different registry URL. During normal pnpm metadata/install workflows, pnpm binds the user-origin unscoped credential to the repository-selected registry and sends it as an Authorization header. This vulnerability is fixed in 10.34.0 and 11.4.0.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | pnpm | < 10.34.0 | 10.34.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Pnpm | Pnpm | before 10.34.0 from 11.0.0 before 11.4.0 |