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CVE-2026-44249 Netty has an IPv6 Subnet Filter Bypass via Incorrect Comparator Masking

🗓️ 11 Jun 2026 20:46:14Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 25 Views

Netty versions 4.1.135.Final and 4.2.15.Final have a subnet bypass due to a masking error in IpSubnetFilterRule.compareTo.

Related
Affected
Refs
[
  {
    "vendor": "netty",
    "product": "netty",
    "versions": [
      {
        "version": ">= 4.2.0.Final, < 4.2.15.Final",
        "status": "affected"
      },
      {
        "version": "< 4.1.135.Final",
        "status": "affected"
      }
    ]
  }
]

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11 Jun 2026 20:46Current
CVSS 3.18.1
EPSS0.00552
25