CVE-2025-13437

Description

When zx is invoked with --prefer-local=<path>, the CLI creates a symlink named ./node_modules pointing to <path>/node_modules. Due to a logic error in src/cli.ts (linkNodeModules / cleanup), the function returns the target path instead of the alias (symlink path). The later cleanup routine removes what it received, which deletes the target directory itself. Result: zx can delete an external <path>/node_modules outside the current working directory.

PUBLISHED Reserved 2025-11-19 | Published 2025-11-20 | Updated 2025-11-20 | Assigner Google

Problem types

CWE-706 Use of Incorrectly-Resolved Name or Reference

Product status

Credits

Ali Firas finder

References

github.com/google/zx/issues/1348

cve.org (CVE-2025-13437)

nvd.nist.gov (CVE-2025-13437)

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