{"action":"Upgrade undertow to 2.2.10-1 or later.","affected":[{"fixed":"2.2.10-1","introduced":"0"}],"component":"undertow","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.2.10-1"],"id":"tcs_01M5NFSTSHF7YMCFZ4KT7VS2RB","modified_at":"2026-10-23T18:02:30.030024198Z","published_at":"2022-05-24T19:15:09.037Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3597","https://security-tracker.debian.org/tracker/CVE-2021-3597"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3597","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3597"}],"summary":"A flaw was found in undertow. The HTTP2SourceChannel fails to write the final frame under some circumstances, resulting in a denial of service. The highest threat from this vulnerability is availabili"}