JLSEC-2026-695
- Source
- https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-695.md
- Import Source
- https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-695.json
- JSON Data
- https://api.osv.dev/v1/vulns/JLSEC-2026-695
- Upstream
- Published
- 2026-07-14T21:41:35.775Z
- Modified
- 2026-07-25T18:24:46.492394537Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- 2.3 (Low) CVSS_V4 - 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 CVSS Calculator
- Summary
- The X25519 `x86_64` assembly implementation fails to clear the most significant bit during the final...
- Details
-
The X25519
x86_64assembly 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. - Database specific
{ "sources": [ { "modified": "2026-06-26T16:53:52.440Z", "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10512", "database_specific": { "status": "Analyzed" }, "published": "2026-06-25T20:17:09.513Z", "id": "CVE-2026-10512", "imported": "2026-07-17T22:26:33.331Z", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-10512" }, { "modified": "2026-06-26T18:33:51Z", "imported": "2026-07-17T22:26:33.491Z", "url": "https://api.github.com/advisories/GHSA-gjm7-vch5-hch8", "published": "2026-06-25T21:31:30Z", "id": "GHSA-gjm7-vch5-hch8", "html_url": "https://github.com/advisories/GHSA-gjm7-vch5-hch8" }, { "modified": "2026-06-26T13:49:49Z", "imported": "2026-07-17T22:26:43.408Z", "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39552", "published": "2026-06-25T19:58:16Z", "id": "EUVD-2026-39552", "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39552" } ], "license": "CC-BY-4.0" }- References