CVE-2025-52434

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.

This issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.

Users are recommended to upgrade to version 9.0.107, which fixes the issue.

References

Affected packages

Debian:11 / tomcat9

Package

Name: tomcat9
Purl: pkg:deb/debian/tomcat9?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

9.*

9.0.43-1

9.0.43-2~deb11u1

9.0.43-2~deb11u2

9.0.43-2~deb11u3

9.0.43-2~deb11u4

9.0.43-2~deb11u5

9.0.43-2~deb11u6

9.0.43-2~deb11u7

9.0.43-2~deb11u8

9.0.43-2~deb11u9

9.0.43-2~deb11u10

9.0.43-2~deb11u11

9.0.43-2~deb11u12

9.0.43-2

9.0.43-3

9.0.53-1

9.0.54-1

9.0.55-1

9.0.58-1

9.0.62-1

9.0.63-1

9.0.64-1

9.0.64-2

9.0.65-1

9.0.67-1

9.0.68-1

9.0.68-1.1

9.0.70-1

9.0.70-2

9.0.95-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / tomcat9

Package

Name: tomcat9
Purl: pkg:deb/debian/tomcat9?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

9.0.70-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / tomcat9

Package

Name: tomcat9
Purl: pkg:deb/debian/tomcat9?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

9.0.70-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}