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CVE-2026-68763 Apache Tomcat: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset

🗓️ 25 Aug 2026 22:00:37Reported by apacheType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Allocation leak in Apache Tomcat HTTP/2 backlog tracking when a stream is reset causes DoS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-68763
25 Aug 202622:00
cve
euvd
EUVD
EUVD-2026-66190
26 Aug 202600:30
euvd
nvd
NVD
CVE-2026-68763
25 Aug 202622:17
nvd
ptsecurity
Positive Technologies
PT-2026-81889
25 Aug 202600:00
ptsecurity
[
  {
    "vendor": "Apache Software Foundation",
    "product": "Apache Tomcat",
    "versions": [
      {
        "status": "affected",
        "version": "11.0.0-M1",
        "lessThanOrEqual": "11.0.24",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "10.1.0-M1",
        "lessThanOrEqual": "10.1.57",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "9.0.39",
        "lessThanOrEqual": "9.0.120",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "8.5.59",
        "lessThanOrEqual": "8.5.100",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThanOrEqual": "7.0.109",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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