{"id":"JLSEC-2026-700","summary":"Out-of-bounds heap read during SM2/SM3 certificate signature verification. When parsing a...","details":"Out-of-bounds heap read during SM2/SM3 certificate signature verification. When parsing a certificate with an SM3wSM2 signature, the Subject Key Identifier computation reads the trailing 65 bytes of the public key without checking that the key is at least that long. A public key shorter than 65 bytes results in an out-of-bounds heap read, leading to a potential crash (denial of service); there is no out-of-bounds write. Note this only affects builds with SM2 support (--enable-sm2 or --enable-all).","modified":"2026-07-18T00:02:20.941029753Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-12340","GHSA-q349-x427-xg3w","EUVD-2026-39547"],"database_specific":{"license":"CC-BY-4.0","sources":[{"published":"2026-06-25T20:17:09.907Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-12340","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12340","database_specific":{"status":"Analyzed"},"id":"CVE-2026-12340","imported":"2026-07-17T22:27:36.479Z","modified":"2026-06-26T18:54:32.567Z"},{"published":"2026-06-25T21:31:31Z","url":"https://api.github.com/advisories/GHSA-q349-x427-xg3w","html_url":"https://github.com/advisories/GHSA-q349-x427-xg3w","id":"GHSA-q349-x427-xg3w","imported":"2026-07-17T22:27:36.674Z","modified":"2026-06-26T21:32:11Z"},{"modified":"2026-06-26T13:59:21Z","published":"2026-06-25T19:36:21Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39547","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39547","id":"EUVD-2026-39547","imported":"2026-07-17T22:27:36.857Z"}]},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-q349-x427-xg3w"},{"type":"WEB","url":"https://github.com/wolfSSL/wolfssl/pull/10641"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12340"},{"type":"WEB","url":"https://www.wolfssl.com/docs/security-vulnerabilities"},{"type":"WEB","url":"https://www.wolfssl.com/docs/security-vulnerabilities/"}],"affected":[{"package":{"name":"wolfSSL_jll","ecosystem":"Julia","purl":"pkg:julia/wolfSSL_jll?uuid=98c43586-9870-5ae5-ab22-acc77b9bbdb5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"5.7.2+0"},{"fixed":"5.9.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-700.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"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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:X"}]}