{"action":"Upgrade wolfssl to 5.9.1-r0 or later.","affected":[{"fixed":"5.9.1-r0","introduced":"0"}],"component":"wolfssl","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.24","exploited":false,"fixed_versions":["5.9.1-r0"],"id":"tcs_01M6HC0YMNAVECPME62GXH9QK3","modified_at":"2026-11-03T06:33:06.247148362Z","published_at":"2026-04-09T23:17:01.257Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-5503","https://security.alpinelinux.org/vuln/CVE-2026-5503"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-5503#Alpine:v3.24/wolfssl","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-5503"}],"summary":"In TLSX_EchChangeSNI, the ctx->extensions branch set extensions unconditionally even when TLSX_Find returned NULL. This caused TLSX_UseSNI to attach the attacker-controlled publicName to the shared WO"}