{"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_01M5NFTTVH4SWSBS4BZWT8ZWTX","modified_at":"2026-10-23T18:03:29.649148577Z","published_at":"2022-08-23T16:15:09.450Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3690","https://security-tracker.debian.org/tracker/CVE-2021-3690"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3690","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3690"}],"summary":"A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from thi"}