This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121.
Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
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Wed, 23 Sep 2026 19:30:00 +0000
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Wed, 23 Sep 2026 17:30:00 +0000
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cvssV3_1
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Wed, 23 Sep 2026 14:00:00 +0000
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Apache
Apache apache Tomcat |
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Apache
Apache apache Tomcat |
Wed, 23 Sep 2026 11:45:00 +0000
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| Description | Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause one request from another user to fail. This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue. | |
| Title | Apache Tomcat: HTTP/2 DoS via malformed request | |
| Weaknesses | CWE-459 | |
| References |
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-09-23T18:10:46.744Z
Reserved: 2026-08-24T16:10:49.885Z
Link: CVE-2026-78437
Updated: 2026-09-23T16:25:28.259Z
Status : Awaiting Analysis
Published: 2026-09-23T12:17:07.340
Modified: 2026-09-23T19:19:21.640
Link: CVE-2026-78437
No data.
OpenCVE Enrichment
Updated: 2026-09-23T18:30:06Z
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CWE-459
Incomplete Cleanup