This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-78437 →

DEBIAN-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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 tomcat10

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 tomcat10

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 tomcat10

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.1.60-1"}]}]

Debian:13 tomcat11

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 tomcat11

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:12 tomcat9

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.70-2"}]}]

Debian:13 tomcat9

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.70-2"}]}]

Debian:14 tomcat9

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.70-2"}]}]

References

advisory security-tracker.debian.org