{"action":"Upgrade io.netty:netty-codec-http3 to 4.2.16.Final or later.","affected":[{"fixed":"4.2.16.Final","introduced":"0"}],"component":"io.netty:netty-codec-http3","cve_ids":["CVE-2026-56816"],"ecosystem":"Maven","epss":0.00644,"exploited":false,"fixed_versions":["4.2.16.Final"],"ghsa_id":"GHSA-hpcc-26xq-25fv","id":"tcs_01M5N911D7BCYZQQP7BHRD31P3","modified_at":"2026-09-10T03:51:11.620299875Z","published_at":"2026-07-22T21:42:42Z","references":["https://osv.dev/vulnerability/GHSA-hpcc-26xq-25fv","https://github.com/netty/netty/security/advisories/GHSA-hpcc-26xq-25fv","https://nvd.nist.gov/vuln/detail/CVE-2026-56816","https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b","https://github.com/netty/netty","https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-hpcc-26xq-25fv","url":"https://osv.dev/vulnerability/GHSA-hpcc-26xq-25fv"}],"summary":"Netty: Memory Exhaustion via HTTP/3 Reserved Frame Types"}