chore(deps): update dependency picomatch to v4.0.4 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
picomatch	4.0.3 → 4.0.4

GitHub Vulnerability Alerts

CVE-2026-33672

Impact

picomatch is vulnerable to a method injection vulnerability (CWE-1321) affecting the POSIX_REGEX_SOURCE object. Because the object inherits from Object.prototype, specially crafted POSIX bracket expressions (e.g., [[:constructor:]]) can reference inherited method names. These methods are implicitly converted to strings and injected into the generated regular expression.

This leads to incorrect glob matching behavior (integrity impact), where patterns may match unintended filenames. The issue does not enable remote code execution, but it can cause security-relevant logic errors in applications that rely on glob matching for filtering, validation, or access control.

All users of affected picomatch versions that process untrusted or user-controlled glob patterns are potentially impacted.

Patches

This issue is fixed in picomatch 4.0.4, 3.0.2 and 2.3.2.

Users should upgrade to one of these versions or later, depending on their supported release line.

Workarounds

If upgrading is not immediately possible, avoid passing untrusted glob patterns to picomatch.

Possible mitigations include:

• Sanitizing or rejecting untrusted glob patterns, especially those containing POSIX character classes like [[:...:]].

• Avoiding the use of POSIX bracket expressions if user input is involved.

• Manually patching the library by modifying POSIX_REGEX_SOURCE to use a null prototype:

  const POSIX_REGEX_SOURCE = {
    __proto__: null,
    alnum: 'a-zA-Z0-9',
    alpha: 'a-zA-Z',
    // ... rest unchanged
  };
  

Resources

• fix for similar issue: https://github.com/micromatch/picomatch/pull/144
• picomatch repository https://github.com/micromatch/picomatch

---

Release Notes

micromatch/picomatch (picomatch)

v4.0.4

Compare Source

This is a security release fixing several security relevant issues.

What's Changed

• Fix for CVE-2026-33671
• Fix for CVE-2026-33672

Full Changelog: micromatch/picomatch@4.0.3...4.0.4

---

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