{"cve":"CVE-2026-1229","nvd":{"published":"2026-02-24T08:16:28.407","modified":"2026-06-17T10:15:21.823","status":"Analyzed","description":"The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas.\nECDH and ECDSA signing relying on this curve are not affected.\n\nThe bug was fixed in  v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/U:Amber","score":2.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-682"],"references":["https://github.com/cloudflare/circl"],"products":["cloudflare:circl"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2026-1229","score":0.00426,"percentile":0.3685,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-q9hv-hpm4-hj6x","url":"https://osv.dev/vulnerability/GHSA-q9hv-hpm4-hj6x","summary":"CIRCL has an incorrect calculation in secp384r1 CombinedMult","modified":"2026-09-10T03:50:59.642347041Z","packages":[{"ecosystem":"Go","name":"github.com/cloudflare/circl","purl":"pkg:golang/github.com/cloudflare/circl","ranges":["<1.6.3"],"fixed":["1.6.3"]}]},{"id":"GO-2026-4550","url":"https://osv.dev/vulnerability/GO-2026-4550","summary":"CIRCL has an incorrect calculation in secp384r1 CombinedMult in github.com/cloudflare/circl","modified":"2026-03-09T02:03:40.254213Z","packages":[{"ecosystem":"Go","name":"github.com/cloudflare/circl","purl":"pkg:golang/github.com/cloudflare/circl","ranges":["<1.6.3"],"fixed":["1.6.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}