{"action":"Upgrade io.netty:netty-codec-http to 4.1.133.Final (4.1.x) or 4.2.13.Final (4.2.x) or later.","affected":[{"fixed":"4.2.13.Final","introduced":"4.2.0.Alpha1"},{"fixed":"4.1.133.Final","introduced":"0"}],"component":"io.netty:netty-codec-http","cve_ids":["CVE-2026-42581"],"ecosystem":"Maven","epss":0.0063,"exploited":false,"fixed_versions":["4.2.13.Final","4.1.133.Final"],"ghsa_id":"GHSA-xxqh-mfjm-7mv9","id":"tcs_01M5N9K7K53PNVPR800FNVPNV7","modified_at":"2026-09-10T03:51:07.381332705Z","published_at":"2026-05-07T00:18:41Z","references":["https://osv.dev/vulnerability/GHSA-xxqh-mfjm-7mv9","https://github.com/netty/netty/security/advisories/GHSA-xxqh-mfjm-7mv9","https://nvd.nist.gov/vuln/detail/CVE-2026-42581","https://github.com/netty/netty"],"severity":{"label":"medium","score":5.8},"sources":[{"source":"osv","source_id":"GHSA-xxqh-mfjm-7mv9","url":"https://osv.dev/vulnerability/GHSA-xxqh-mfjm-7mv9"}],"summary":"Netty HTTP/1.0 TE+CL Coexistence Bypasses Smuggling Sanitization"}