{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"wolfssl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5NSZWPN4CT2NZAW34SC1F5P","modified_at":"2026-10-01T03:03:26.540944630Z","published_at":"2026-04-09T23:17:01.257Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-5503","https://security-tracker.debian.org/tracker/CVE-2026-5503"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-5503#Debian:13/wolfssl","url":"https://osv.dev/vulnerability/DEBIAN-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"}