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cve.new
CVE-2026-42504unknown

Quadratic complexity in WordDecoder.DecodeHeader in mime

Check your stack

The advisory, in context

Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

References