CVE-2026-25854: CWE-601 URL Redirection to Untrusted Site ('Open Redirect') in Apache Software Foundation Apache Tomcat
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-25854) in Apache Tomcat involves an occasional URL redirection to untrusted sites through the LoadBalancerDrainingValve. It affects Apache Tomcat versions 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. The issue is classified under CWE-601 (Open Redirect). The Apache Software Foundation has addressed this vulnerability in versions 11.0.20, 10.1.53, and 9.0.116.
Potential Impact
The vulnerability allows an attacker to redirect users to untrusted external websites, which can be leveraged in phishing or social engineering attacks. There is no indication of known exploits in the wild at this time. The impact is primarily on user trust and potential exposure to malicious sites via crafted URLs leveraging the open redirect.
Mitigation Recommendations
A fix is available. Users should upgrade Apache Tomcat to versions 11.0.20, 10.1.53, or 9.0.116 or later, which contain the official fix for this vulnerability. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-25854: CWE-601 URL Redirection to Untrusted Site ('Open Redirect') in Apache Software Foundation Apache Tomcat
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-25854) in Apache Tomcat involves an occasional URL redirection to untrusted sites through the LoadBalancerDrainingValve. It affects Apache Tomcat versions 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. The issue is classified under CWE-601 (Open Redirect). The Apache Software Foundation has addressed this vulnerability in versions 11.0.20, 10.1.53, and 9.0.116.
Potential Impact
The vulnerability allows an attacker to redirect users to untrusted external websites, which can be leveraged in phishing or social engineering attacks. There is no indication of known exploits in the wild at this time. The impact is primarily on user trust and potential exposure to malicious sites via crafted URLs leveraging the open redirect.
Mitigation Recommendations
A fix is available. Users should upgrade Apache Tomcat to versions 11.0.20, 10.1.53, or 9.0.116 or later, which contain the official fix for this vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-02-06T16:25:11.569Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d7ff941cc7ad14da10e9c5
Added to database: 4/9/2026, 7:35:48 PM
Last enriched: 4/9/2026, 7:51:58 PM
Last updated: 4/10/2026, 8:15:33 AM
Views: 5
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