{"action":"Upgrade io.netty:netty-codec-http2 to 4.1.135.Final (4.1.x) or 4.2.15.Final (4.2.x) or later.","affected":[{"fixed":"4.1.135.Final","introduced":"0"},{"fixed":"4.2.15.Final","introduced":"4.2.0.Alpha1"}],"component":"io.netty:netty-codec-http2","cve_ids":["CVE-2026-48043"],"ecosystem":"Maven","epss":0.00753,"exploited":false,"fixed_versions":["4.1.135.Final","4.2.15.Final"],"ghsa_id":"GHSA-c2gf-v879-257j","id":"tcs_01M5N8R664V7TCRHYJ7VJ55V2W","modified_at":"2026-10-06T19:45:03.555042181Z","published_at":"2026-06-11T13:28:46Z","references":["https://osv.dev/vulnerability/GHSA-c2gf-v879-257j","https://github.com/netty/netty/security/advisories/GHSA-c2gf-v879-257j","https://nvd.nist.gov/vuln/detail/CVE-2026-48043","https://github.com/netty/netty/commit/db6138b168699736a6463c367e12ad0a4c36a25e","https://github.com/netty/netty/commit/3d45a1e4e8eb99144f716e54be5ac57e525fa7ca","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48043.json","https://github.com/netty/netty/releases/tag/netty-4.2.15.Final","https://github.com/netty/netty/releases/tag/netty-4.1.135.Final","https://github.com/netty/netty","https://bugzilla.redhat.com/show_bug.cgi?id=2488442","https://access.redhat.com/security/cve/CVE-2026-48043","https://access.redhat.com/errata/RHSA-2026:66488","https://access.redhat.com/errata/RHSA-2026:65126","https://access.redhat.com/errata/RHSA-2026:54435","https://access.redhat.com/errata/RHSA-2026:53806","https://access.redhat.com/errata/RHSA-2026:53646","https://access.redhat.com/errata/RHSA-2026:53645","https://access.redhat.com/errata/RHSA-2026:53644","https://access.redhat.com/errata/RHSA-2026:50085","https://access.redhat.com/errata/RHSA-2026:48151","https://access.redhat.com/errata/RHSA-2026:48124","https://access.redhat.com/errata/RHSA-2026:41951","https://access.redhat.com/errata/RHSA-2026:37390","https://access.redhat.com/errata/RHSA-2026:36820","https://access.redhat.com/errata/RHSA-2026:34608","https://access.redhat.com/errata/RHSA-2026:26586","https://access.redhat.com/errata/RHSA-2026:26018","https://access.redhat.com/errata/RHSA-2026:26017"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-c2gf-v879-257j","url":"https://osv.dev/vulnerability/GHSA-c2gf-v879-257j"}],"summary":"netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Leads to Memory Exhaustion"}