{"cve":"CVE-2026-79673","nvd":{"published":"2026-08-25T12:16:35.680","modified":"2026-08-31T20:38:54.340","status":"Deferred","description":"Ech0 before 4.4.3 protects the PUT /user endpoint with the profile:read scope, a read-only scope, but allows write operations including password changes. An attacker with an admin's profile:read access token can change the admin's password and login to obtain an unrestricted session token that bypasses all scope enforcement.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.5},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","score":6.5},"cwes":["CWE-863"],"references":["https://github.com/lin-snow/Ech0/security/advisories/GHSA-hm2h-wwwh-g49x","https://www.vulncheck.com/advisories/ech0-before-scope-bypass-via-profile-read-token"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-79673","score":0.00427,"percentile":0.36976,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hm2h-wwwh-g49x","url":"https://osv.dev/vulnerability/GHSA-hm2h-wwwh-g49x","summary":"Ech0 Scope Bypass: profile:read Access Token Can Change Admin Password and Escalate to Unrestricted Session","modified":"2026-08-27T04:10:37.976781942Z","packages":[{"ecosystem":"Go","name":"github.com/lin-snow/ech0","purl":"pkg:golang/github.com/lin-snow/ech0","ranges":["<4.4.3"],"fixed":["4.4.3"]}]},{"id":"GO-2026-5431","url":"https://osv.dev/vulnerability/GO-2026-5431","summary":"Ech0 Scope Bypass: profile:read Access Token Can Change Admin Password and Escalate to Unrestricted Session in github.com/lin-snow/ech0","modified":"2026-08-27T04:10:37.976781942Z","packages":[{"ecosystem":"Go","name":"github.com/lin-snow/ech0","purl":"pkg:golang/github.com/lin-snow/ech0","ranges":["all versions"],"fixed":[]}]}],"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."]}