{"action":"Upgrade org.apache.tomcat:tomcat-catalina to 9.0.107 (9.x), 10.1.43 (10.x) or 11.0.9 (11.x) or later.","affected":[{"fixed":"11.0.9","introduced":"11.0.0-M1"},{"fixed":"10.1.43","introduced":"10.1.0-M1"},{"fixed":"9.0.107","introduced":"9.0.0.M1"},{"introduced":"8.5.0","last_affected":"8.5.100"}],"component":"org.apache.tomcat:tomcat-catalina","cve_ids":["CVE-2025-52520"],"ecosystem":"Maven","epss":0.02198,"exploited":false,"fixed_versions":["11.0.9","10.1.43","9.0.107"],"ghsa_id":"GHSA-wr62-c79q-cv37","id":"tcs_01M5N9H20Z6158MFKCSACWXKAR","modified_at":"2026-03-06T22:01:30.941844Z","published_at":"2025-07-10T21:31:52Z","references":["https://osv.dev/vulnerability/GHSA-wr62-c79q-cv37","https://nvd.nist.gov/vuln/detail/CVE-2025-52520","https://github.com/apache/tomcat/commit/927d66fbc294cb65242102b817a45fd80834e040","https://github.com/apache/tomcat/commit/a51e4bedccfafd35b7cdd0ee3e22267dee9f90db","https://github.com/apache/tomcat/commit/fc42bbccb9041fafd194fbfdf3eab1d44cb5c45c","https://github.com/apache/tomcat","https://lists.apache.org/thread/trqq01bbxw6c92zx69kx2mw2qgmfy0o5","https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html","http://www.openwall.com/lists/oss-security/2025/07/10/12"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-wr62-c79q-cv37","url":"https://osv.dev/vulnerability/GHSA-wr62-c79q-cv37"}],"summary":"Apache Tomcat Catalina is vulnerable to DoS attack through bypassing of size limits"}