CVE-2026-78437 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/09/23/26 | CVE | |
| https://lists.apache.org/thread/qkmsos3s8chn5053qr466rzwv6sk5gjg | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-459 | Incomplete Cleanup | [email protected] |
Affected Products
No affected product data is available for this CVE.
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 23, 2026 | CVE Modified | CVE |
| Sep 23, 2026 | CVE Modified | CISA-ADP |
| Sep 23, 2026 | New CVE Received | [email protected] |