Apache Tomcat: HTTP request smuggling via malformed trailer headers
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 11.0.0-M11, 10.1.16, 9.0.83, 8.5.96
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Apache Software Foundation Apache Tomcat
From 11.0.0-M1 · through 11.0.0-M10; From 10.1.0-M1 · through 10.1.15; From 9.0.0-M1 · through 9.0.82; From 8.5.0 · through 8.5.95
- org.apache.tomcat:tomcat-catalinaMaven
From 11.0.0-M1 · fixed in 11.0.0-M11
- org.apache.tomcat:tomcat-catalinaMaven
From 10.1.0-M1 · fixed in 10.1.16
- org.apache.tomcat:tomcat-catalinaMaven
From 9.0.0-M1 · fixed in 9.0.83
- org.apache.tomcat:tomcat-catalinaMaven
From 8.5.0 · fixed in 8.5.96
- org.apache.tomcat.embed:tomcat-embed-coreMaven
From 11.0.0-M1 · fixed in 11.0.0-M11
- org.apache.tomcat.embed:tomcat-embed-coreMaven
From 10.1.0-M1 · fixed in 10.1.16
- org.apache.tomcat.embed:tomcat-embed-coreMaven
From 9.0.0-M1 · fixed in 9.0.83
- org.apache.tomcat.embed:tomcat-embed-coreMaven
From 8.5.0 · fixed in 8.5.96
- org.apache.tomcat:tomcat-coyoteMaven
From 11.0.0-M1 · fixed in 11.0.0-M11