{"id":"JLSEC-2026-695","summary":"The X25519 x86_64 assembly implementation fails to clear the most significant bit during the...","details":"The X25519 x86_64 assembly implementation fails to clear the most significant bit during the final modular reduction, so the computed result may not be fully reduced modulo the field prime 2^255 - 19. This can leave the field element in a non-canonical form, producing an incorrect result from the scalar multiplication and potentially a wrong shared secret. The final carry-propagation chains in the x64 and AVX2 reduction routines could overflow into the top bit, and the high limb was not masked afterward, so the 255-bit field element was left non-canonical.","modified":"2026-07-14T21:50:12.322394676Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-10512","EUVD-2026-39552","GHSA-gjm7-vch5-hch8"],"database_specific":{"license":"CC-BY-4.0","sources":[{"id":"CVE-2026-10512","imported":"2026-07-14T21:22:49.561Z","modified":"2026-06-26T16:53:52.440Z","published":"2026-06-25T20:17:09.513Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10512","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10512","database_specific":{"status":"Analyzed"}},{"html_url":"https://github.com/advisories/GHSA-gjm7-vch5-hch8","id":"GHSA-gjm7-vch5-hch8","imported":"2026-07-14T21:23:10.146Z","modified":"2026-06-26T18:33:51Z","published":"2026-06-25T21:31:30Z","url":"https://api.github.com/advisories/GHSA-gjm7-vch5-hch8"},{"html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39552","id":"EUVD-2026-39552","imported":"2026-07-14T21:22:51.250Z","modified":"2026-06-26T13:49:49Z","published":"2026-06-25T19:58:16Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39552"}]},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-gjm7-vch5-hch8"},{"type":"WEB","url":"https://github.com/wolfSSL/wolfssl/pull/10536"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-10512"},{"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-2026-695.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}