CVE-2026-68763
Apache Tomcat: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Uncontrolled Resource Consumption vulnerability in Apache Tomcat via an allocation leak in the HTTP/2 backlog tracking when a stream is reset This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.39 through 9.0.120. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.59 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.
| CWE | CWE-400 |
| Vendor | apache software foundation |
| Product | apache tomcat |
| Published | Aug 25, 2026 |
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Affected Versions
Apache Software Foundation / Apache Tomcat
11.0.0-M1 ≤ 11.0.24 10.1.0-M1 ≤ 10.1.57 9.0.39 ≤ 9.0.120 8.5.59 ≤ 8.5.100
References
Credits
Zhen Kong