{"id":"JLSEC-2026-706","summary":"Out-of-bounds read in ALPN parsing due to incomplete validation. wolfSSL 5.8.4 and earlier...","details":"Out-of-bounds read in ALPN parsing due to incomplete validation. wolfSSL 5.8.4 and earlier contained an out-of-bounds read in ALPN handling when built with ALPN enabled (HAVE_ALPN / --enable-alpn). A crafted ALPN protocol list could trigger an out-of-bounds read, leading to a potential process crash (denial of service). Note that ALPN is disabled by default, but is enabled for these 3rd party compatibility features: enable-apachehttpd, enable-bind, enable-curl, enable-haproxy, enable-hitch, enable-lighty, enable-jni, enable-nginx, enable-quic.","modified":"2026-07-18T00:02:20.936794597Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-3547","GHSA-f377-557w-vjgv","EUVD-2026-13166"],"database_specific":{"license":"CC-BY-4.0","sources":[{"modified":"2026-06-17T10:43:45.970Z","published":"2026-03-19T21:17:12.653Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-3547","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3547","database_specific":{"status":"Analyzed"},"id":"CVE-2026-3547","imported":"2026-07-17T22:28:17.598Z"},{"url":"https://api.github.com/advisories/GHSA-f377-557w-vjgv","html_url":"https://github.com/advisories/GHSA-f377-557w-vjgv","id":"GHSA-f377-557w-vjgv","imported":"2026-07-17T22:28:17.762Z","modified":"2026-03-19T21:30:31Z","published":"2026-03-19T21:30:25Z"},{"imported":"2026-07-17T22:28:27.711Z","modified":"2026-03-21T03:33:23Z","published":"2026-03-19T20:20:42Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-13166","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-13166","id":"EUVD-2026-13166"}]},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-f377-557w-vjgv"},{"type":"WEB","url":"https://github.com/wolfSSL/wolfssl/pull/9859"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3547"}],"affected":[{"package":{"name":"wolfSSL_jll","ecosystem":"Julia","purl":"pkg:julia/wolfSSL_jll?uuid=98c43586-9870-5ae5-ab22-acc77b9bbdb5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.9.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-706.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}