high7.3
CVE-2026-78437
Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause one request from another user to fail.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | 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. |
Versions were read from the advisory text. No structured product data has been published for this record yet.