{"cve":"CVE-2026-26958","nvd":{"published":"2026-02-19T23:16:26.577","modified":"2026-06-17T10:26:26.987","status":"Deferred","description":"filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for building cryptographic primitives. In versions 1.1.0 and earlier, MultiScalarMult produces invalid results or undefined behavior if the receiver is not the identity point. If (*Point).MultiScalarMult is called on an initialized point that is not the identity point, it returns an incorrect result. If the method is called on an uninitialized point, the behavior is undefined. In particular, if the receiver is the zero value, MultiScalarMult returns an invalid point that compares Equal to every other point. Note that MultiScalarMult is a rarely used, advanced API. For example, users who depend on filippo.io/edwards25519 only through github.com/go-sql-driver/mysql are not affected. This issue has been fixed in version 1.1.1.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U","score":1.7},"cvss_v3":null,"cwes":["CWE-665"],"references":["https://github.com/FiloSottile/edwards25519/commit/d1c650afb95fad0742b98d95f2eb2cf031393abb","https://github.com/FiloSottile/edwards25519/releases/tag/v1.1.1","https://github.com/FiloSottile/edwards25519/security/advisories/GHSA-fw7p-63qq-7hpr"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:23:35.260773158+00:00"},"epss":{"cve":"CVE-2026-26958","score":0.00415,"percentile":0.35843,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fw7p-63qq-7hpr","url":"https://osv.dev/vulnerability/GHSA-fw7p-63qq-7hpr","summary":"filippo.io/edwards25519 MultiScalarMult produces invalid results or undefined behavior if receiver is not the identity","modified":"2026-09-10T03:50:34.911386557Z","packages":[{"ecosystem":"Go","name":"filippo.io/edwards25519","purl":"pkg:golang/filippo.io/edwards25519","ranges":["<1.1.1"],"fixed":["1.1.1"]}]},{"id":"GO-2026-4503","url":"https://osv.dev/vulnerability/GO-2026-4503","summary":"Invalid result or undefined behavior in filippo.io/edwards25519","modified":"2026-02-19T20:41:24.219467Z","packages":[{"ecosystem":"Go","name":"filippo.io/edwards25519","purl":"pkg:golang/filippo.io/edwards25519","ranges":["<1.1.1"],"fixed":["1.1.1"]}]}],"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."]}