{"action":"Upgrade tomcat9 to 9.0.62-1 or later.","affected":[{"fixed":"9.0.62-1","introduced":"0"}],"component":"tomcat9","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["9.0.62-1"],"id":"tcs_01M5NG1VBBAFW6HGD24SG7WC9W","modified_at":"2026-10-23T18:04:16.658140003Z","published_at":"2022-09-28T14:15:09.880Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-43980","https://security-tracker.debian.org/tracker/CVE-2021-43980"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-43980#Debian:13/tomcat9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-43980"}],"summary":"The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in A"}