{"id":"CVE-2026-7679","aliases":[],"title":"YunaiV yudao-cloud OAuth2TokenServiceImpl.java getAccessToken improper authentication","titleSource":"VulDB","descriptionSource":"VulDB","products":[{"vendor":"YunaiV","name":"yudao-cloud","platforms":[],"versions":[{"version":"2026.01","status":"affected"}],"source":"VulDB","url":"https://www.cve.org/CVERecord?id=CVE-2026-7679"}],"remediation":[],"description":"A security flaw has been discovered in YunaiV yudao-cloud up to 2026.01. This impacts the function getAccessToken of the file yudao-module-system-biz/src/main/java/io/github/ruoyi/common/oauth2/service/impl/OAuth2TokenServiceImpl.java. Performing a manipulation results in improper authentication. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor explains: \"[W]e intentionally retain the existing generic compatibility path that accepts a valid, unexpired stored refresh token when an access-token lookup is unavailable, for integrations such as reports and WebSocket. We are not introducing strict access-token-only verification, new revocation behavior or a separate trusted-entry API. This is a retained compatibility decision, not a claim that this behavior follows the standard OAuth separation or that every identity/revocation scenario has been eliminated.\"","severity":"medium","score":6.9,"published":"2026-05-03T04:15:10.929Z","modified":"2026-10-27T07:22:32.665Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://vuldb.com/vuln/360832","https://vuldb.com/vuln/360832/cti","https://vuldb.com/cve/CVE-2026-7679","https://vuldb.com/submit/800866","https://github.com/9str0IL/CVE/issues/1"],"sources":[{"name":"CVE","id":"CVE-2026-7679","modified":"2026-10-27T07:22:32.665Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-7679"}],"assessments":[{"source":"VulDB","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","score":6.9},{"source":"VulDB","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","score":7.3},{"source":"VulDB","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","score":7.3},{"source":"VulDB","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C","score":7.5}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T17:50:31.025Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}