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CVE-2026-65637 Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete

🗓️ 25 Aug 2026 21:49:13Reported by apacheType 
cvelist
 cvelist
🔗 www.cve.org👁 15 Views

HTTP/2 SNI validation bypass in Apache Tomcat 9.0.115–11.0.24 via no-authority requests.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-65637
26 Aug 202600:54
circl
cve
CVE
CVE-2026-65637
25 Aug 202621:49
cve
euvd
EUVD
EUVD-2026-66127
26 Aug 202600:30
euvd
nvd
NVD
CVE-2026-65637
25 Aug 202622:17
nvd
ptsecurity
Positive Technologies
PT-2026-81878
25 Aug 202600:00
ptsecurity
[
  {
    "vendor": "Apache Software Foundation",
    "product": "Apache Tomcat",
    "versions": [
      {
        "status": "affected",
        "version": "11.0.20",
        "lessThanOrEqual": "11.0.24",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "10.1.53",
        "lessThanOrEqual": "10.1.57",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "9.0.115",
        "lessThanOrEqual": "9.0.120",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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