{"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:v3.23","exploited":false,"fixed_versions":["5.9.1-r0"],"id":"tcs_01M6H43JNJWMQCS5CEZ27P94NR","modified_at":"2026-11-03T06:32:58.077891215Z","published_at":"2026-04-10T04:17:17.080Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-5500","https://security.alpinelinux.org/vuln/CVE-2026-5500"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-5500","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-5500"}],"summary":"wolfSSL's wc_PKCS7_DecodeAuthEnvelopedData() does not properly sanitize the AES-GCM authentication tag length received and has no lower bounds check. A man-in-the-middle can therefore truncate the mac"}