{"action":"Upgrade tomcat9 to 9.0.70-2 or later.","affected":[{"fixed":"9.0.70-2","introduced":"0"}],"component":"tomcat9","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["9.0.70-2"],"id":"tcs_01M5NP0ZJM3P39Q91FP34WKQHV","modified_at":"2026-09-01T20:05:54.043224030Z","published_at":"2025-07-10T20:15:26.970Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-53506","https://security-tracker.debian.org/tracker/CVE-2025-53506"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-53506#Debian:14/tomcat9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-53506"}],"summary":"Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue af"}