https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-03T08:17:29.543620+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2023-46589 CVE-2023-46589 — Apache Tomcat: HTTP request smuggling via malformed trailer headers 2026-10-03T08:17:30.890591+00:00

Affected: Apache Software Foundation Apache Tomcat, apache tomcat

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.

 https://vulnerability.circl.lu/vuln/usn-7032-1 USN-7032-1 — tomcat8, tomcat9 vulnerability 2026-10-03T08:17:30.890822+00:00

Affected: Ubuntu:Pro:18.04:LTS: tomcat8, Ubuntu:Pro:18.04:LTS: tomcat9, Ubuntu:20.04:LTS: tomcat9, Ubuntu:Pro:22.04:LTS: tomcat9, Ubuntu:24.04:LTS: tomcat9

It was discovered that Tomcat incorrectly handled HTTP trailer headers. A remote attacker could possibly use this issue to perform HTTP request smuggling.