CVE-2026-68763

7.5 highEPSS 0.7%

High (7.5) in apache tomcat. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2026-08-25
Modified: 2026-08-27
Record from: the NVD, synced 2026-10-19

Affected

apache:tomcat

References

https://lists.apache.org/thread/tv51ty39ppv41v04hdtkp9dp7tg02nzl
http://www.openwall.com/lists/oss-security/2026/08/26/9

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