REDHAT-BUG-2457039: Low severity Apache Tomcat vulnerability

Published Apr 9, 2026
·
Updated

Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other, unsupported versions may also be affected

Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

Affected Software

1 affected component
Apache Tomcat>=11.0.0-M1<=11.0.18, >=10.1.0-M1<=10.1.52, >=9.0.0.M23<=9.0.115, >=8.5.30<=8.5.100

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 11.0.20
  2. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.53
  3. Upgrade

    Upgrade Apache Tomcat to a version that resolves this vulnerability.

    Fixed in 9.0.116

Event History

Apr 9, 2026
Data Sourced
via Red Hat·08:02 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2457039?

The severity of REDHAT-BUG-2457039 is classified as low.

2

How do I fix REDHAT-BUG-2457039?

To fix REDHAT-BUG-2457039, upgrade your Apache Tomcat to a secure version following the vendor’s guidance.

3

What is the nature of the vulnerability REDHAT-BUG-2457039?

REDHAT-BUG-2457039 is an 'Open Redirect' vulnerability that causes occasional URL redirections to untrusted sites.

4

Which versions of Apache Tomcat are affected by REDHAT-BUG-2457039?

REDHAT-BUG-2457039 affects Apache Tomcat versions from 11.0.0-M1 through 11.0.18, 10.1.0-M1 through 10.1.52, 9.0.0.M23 through 9.0.115, and 8.5.30 through 8.5.100.

5

What component is responsible for the vulnerability in REDHAT-BUG-2457039?

The LoadBalancerDrainingValve component in Apache Tomcat is responsible for the vulnerability REDHAT-BUG-2457039.

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