CVE-2023-41080 Apache Tomcat: Open redirect with FORM authentication

What is CVE-2023-41080?

CVE-2023-41080 is a medium-severity vulnerability in Apache Tomcat, published on 25 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in FORM authentication feature Apache Tomcat.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.0.12, from 9.0.0-M1 through 9.0.79 and from 8.5.0 through 8.5.92. Older, EOL versions may also be affected.

The vulnerability is limited to the ROOT (default) web application.

Weakness: CWE-601

Which versions are affected by CVE-2023-41080?

23 open source packages ship an affected version, including org.apache.tomcat.embed:tomcat-embed-core, tomcat and org.apache.tomcat:tomcat. It affects 2 products.

Products include Apache Tomcat, Debian Debian Linux.

How do I fix CVE-2023-41080?

Upgrade org.apache.tomcat.embed:tomcat-embed-core to a fixed version for your release line: 10.1.13, 11.0.0-M11, 8.5.93 or 9.0.80.

Is CVE-2023-41080 being exploited?

There is no known exploitation of CVE-2023-41080 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Apache Tomcat

• CVE-2025-24813 Apache Tomcat Path Equivalence Exploited Critical 10.0
• CVE-2016-8735 Apache Tomcat Remote Code Execution Exploited Critical 9.8
• CVE-2017-12617 Apache Tomcat Remote Code Execution Exploited High 8.1
• CVE-2017-12615 Apache Tomcat on Windows Remote Code Execution Exploited High 8.1
• CVE-2026-34486 Apache Tomcat Missing Encryption of Sensitive Data Exploited High 7.5

All Apache Tomcat vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-tomcat-2023-41080, CLEANSTART-2026-HS79481, CLSA-2024-1735119580, CLSA-2025-1736889411, CLSA-2026-1788248501, DEBIAN-CVE-2023-41080 and 6 more.