{"id":"JLSEC-2026-695","summary":"The X25519 `x86_64` assembly implementation fails to clear the most significant bit during the final...","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":"2026-07-25T18:24:46.492394537Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-10512","GHSA-gjm7-vch5-hch8","EUVD-2026-39552"],"database_specific":{"sources":[{"imported":"2026-07-17T22:26:33.331Z","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"},"id":"CVE-2026-10512"},{"id":"GHSA-gjm7-vch5-hch8","imported":"2026-07-17T22:26:33.491Z","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://github.com/advisories/GHSA-gjm7-vch5-hch8"},{"id":"EUVD-2026-39552","imported":"2026-07-17T22:26:43.408Z","modified":"2026-06-26T13:49:49Z","published":"2026-06-25T19:58:16Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39552","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39552"}],"license":"CC-BY-4.0"},"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_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:H/AT:P/PR:L/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"}]}