HTTP Request Smuggling The advisory has been revoked - it doesn't affect any version of package org.apache.tomcat:tomcat-catalina (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHETOMCAT-1080639
- published1 Mar 2021
- disclosed1 Mar 2021
- creditUnknown
Introduced: 1 Mar 2021
CVE-2021-25122 (opens in a new tab)Amendment
This was deemed not a vulnerability.
Overview
org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations.
Affected versions of this package are vulnerable to HTTP Request Smuggling. When responding to new h2c connection requests, Apache Tomcat could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.