{"id":"JLSEC-2026-712","details":"1-byte OOB heap read in wc_PKCS7_DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wc_PKCS7_DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted content. Note that PKCS7 support is disabled by default.","modified":"2026-07-18T00:01:03.300978140Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-4159","EUVD-2026-13233"],"database_specific":{"license":"CC-BY-4.0","sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4159","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4159","database_specific":{"status":"Analyzed"},"id":"CVE-2026-4159","imported":"2026-07-17T22:29:08.748Z","modified":"2026-06-17T10:56:05.030Z","published":"2026-03-19T22:16:42.993Z"},{"url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-13233","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-13233","id":"EUVD-2026-13233","imported":"2026-07-17T22:29:18.544Z","modified":"2026-03-20T16:29:05Z","published":"2026-03-19T21:17:46Z"}]},"references":[{"type":"WEB","url":"https://github.com/wolfSSL/wolfssl/pull/9945"}],"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-2026-712.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green"}]}