{"action":"Upgrade github.com/quic-go/quic-go to 0.59.1 or later.","affected":[{"fixed":"0.59.1","introduced":"0"}],"component":"github.com/quic-go/quic-go","cve_ids":["CVE-2026-40898"],"ecosystem":"Go","epss":0.00396,"exploited":false,"fixed_versions":["0.59.1"],"ghsa_id":"GHSA-vvgj-x9jq-8cj9","id":"tcs_01M5KGP3GFM512DYVS2X2X4043","modified_at":"2026-07-25T21:44:40.393974344Z","published_at":"2026-07-07T16:52:19Z","references":["https://osv.dev/vulnerability/GO-2026-5676","https://github.com/quic-go/quic-go/security/advisories/GHSA-vvgj-x9jq-8cj9","https://github.com/quic-go/quic-go/commit/c56e8c79d1627cc1ed6005b421b4b0adadd83665","https://github.com/quic-go/quic-go/pull/5642","https://github.com/advisories/GHSA-g754-hx8w-x2g6","https://github.com/quic-go/quic-go/releases/tag/v0.59.1"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-5676","url":"https://osv.dev/vulnerability/GO-2026-5676"}],"summary":"HTTP/3 QPACK Trailer Expansion Memory Exhaustion in github.com/quic-go/quic-go"}