CVE-2026-74049
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Execution After Redirect in Apache Tomcat

Publication date: 2026-10-20

Last updated on: 2026-10-29

Assigner: Apache Software Foundation

Description
Execution After Redirect (EAR) vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.27, 10.1.61, 9.0.123, which fixes the issue.

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Meta Information

Published
2026-10-20
Last Modified
2026-10-29
Generated
2026-11-09
AI Q&A
2026-10-20
EPSS Evaluated
2026-11-08
NVD
CVE-2026-74049
EUVD
EUVD-2026-105005

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-698 The web application sends a redirect to another location, but instead of exiting, it executes additional code.

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Executive Summary

This is an Execution After Redirect (EAR) vulnerability in Apache Tomcat. It occurs when the server executes code after sending a redirect response to the client. This can lead to unintended actions being performed on the server even after the user has been redirected away from the vulnerable page.

Detection Guidance

This vulnerability is an Execution After Redirect (EAR) issue in Apache Tomcat. Detection requires checking Tomcat versions against affected ranges (11.0.0-M1 to 11.0.26, 10.1.0-M1 to 10.1.60, 9.0.0.M1 to 9.0.122, 8.5.0 to 8.5.100, 7.0.0 to 7.0.109). Use commands like 'catalina.sh version' or check server logs for version info.

Impact Analysis

An attacker could exploit this to perform unauthorized actions on your server, such as modifying data or executing commands, even after a user has been redirected. This could lead to data breaches, unauthorized access, or other malicious activities depending on the server's configuration.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements or HIPAA's security rules for protected health information. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Upgrade Apache Tomcat to version 11.0.27, 10.1.61, 9.0.123, or later to fix the Execution After Redirect vulnerability.

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