CVE-2026-42504: Quadratic complexity in WordDecoder.DecodeHeader in mime

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Jun
Released
2026-06-05
EPSS Score
0.04% (percentile: 13.0%)

Affected Products (2)

Open Source Software

  • azl3 golang 1.25.10-1 on Azure Linux 3.0
  • azl3 golang 1.26.3-1 on Azure Linux 3.0

Revision History

  • 2026-06-05: Information published.