{"id":"CVE-2023-46589","details":"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 \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\n\nOlder, EOL versions may also be affected.\n\n\nUsers 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.","aliases":["BIT-tomcat-2023-46589","GHSA-fccv-jmmp-qg76"],"modified":"2026-03-27T08:59:20.529282662Z","published":"2023-11-28T16:15:06.943Z","related":["ALSA-2024:0539","ALSA-2024:1134","CGA-fxw6-vmq6-5gwv","SUSE-SU-2024:0206-1","SUSE-SU-2024:0208-1","SUSE-SU-2024:0209-1","SUSE-SU-2024:0472-1","SUSE-SU-2026:1058-1","openSUSE-SU-2024:13590-1","openSUSE-SU-2024:13596-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00001.html"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr"},{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2023/11/28/2"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20231214-0009/"},{"type":"ARTICLE","url":"https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr"},{"type":"ARTICLE","url":"https://www.openwall.com/lists/oss-security/2023/11/28/2"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/tomcat","events":[{"introduced":"16bf392c67833ad549733b58c350ff92b5ee782a"},{"fixed":"be97b0e06e77226aea5eb2a7b448f1d53bda2aa1"},{"introduced":"e37b977db6f47e4380ad67114a49e8568951c953"},{"fixed":"e9630c1fad9a72e7394872a2aeeb73627f821b6c"},{"introduced":"e9d17cddc285615807ec5fef09240777436b25dc"},{"fixed":"db45aa20e1686827aa49a9062c775d266ef061d7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-46589.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}