CVE-2026-78383
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
23/09/2026
Last modified:
23/09/2026
Description
Allocation of resources without limits or throttling vulnerability in Apache Tomcat allows an unauthenticated AJP request to pin an AJP processing thread leading to denial of service.<br />
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This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.<br />
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The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected.<br />
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Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH