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Vulnerabilities

Vulnerability · CVE-2025-13437

When zx is invoked with --prefer-local= , the CLI creates a symlink named ./node_modules pointing to /node_modules.

Published Nov 20, 2025 · catalog updated Nov 20, 2025 · Google

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-13437. EPSS is 0.09%. Act only if a listed version of Google is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.09%
Remediation
Vendor / distro source
Affected products
vendor Google zx 8.8.4

When zx is invoked with --prefer-local= , the CLI creates a symlink named ./node_modules pointing to /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 /node_modules outside the current working directory.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Google zx 8.8.48.8.4

How to fix CVE-2025-13437

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-13437. EPSS is 0.09%. Act only if a listed version of Google is installed.

Which versions are affected?

Compare what you have installed with Google zx 8.8.4 8.8.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.09%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 20, 2025 · EUVD

    Detected

    When zx is invoked with --prefer-local= , the CLI creates a symlink named ./node_modules pointing to /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 /node_modules out

  2. Nov 20, 2025 · EUVD

    Updated

    When zx is invoked with --prefer-local= , the CLI creates a symlink named ./node_modules pointing to /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 /node_modules out

Sources

  • CVE.orgVulnerability recordCVE-2025-13437

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-13437

    30-day exploitation probability 0.09%

    first.org
  • EUVDVulnerability recordEUVD-2025-198297

    When zx is invoked with --prefer-local= , the CLI creates a symlink named ./node_modules pointing to /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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 1, 2026
  • CVE.orgOct 28, 2026
  • EUVDOct 28, 2026