{"id":"CVE-2026-91774","title":"Yao through v1.0.0-rc22 authenticates but fails to authorize the GET /user/teams/:id endpoint, allowing any logged-in user to read full team records","summary":"Yao through v1.0.0-rc22 authenticates but fails to authorize the GET /user/teams/:id endpoint, allowing any logged-in user to read full team records. Attackers can supply a known team identifier to retrieve sensitive team data including …","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-862"],"vendor":"YaoApp","product":"yao","affected":["yao <= 1.0.0-rc22"],"published":"2026-09-15","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:47.883","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91774","references":[{"url":"https://github.com/YaoApp/yao","label":"disclosure@vulncheck.com"},{"url":"https://github.com/YaoApp/yao/blob/v1.0.0-rc22/openapi/oauth/providers/user/team.go#L37-L55","label":"disclosure@vulncheck.com"},{"url":"https://github.com/YaoApp/yao/blob/v1.0.0-rc22/openapi/user/team.go#L80-L149","label":"disclosure@vulncheck.com"},{"url":"https://github.com/YaoApp/yao/issues/1553","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/yao-through-1.0.0-rc22-missing-authorization-via-openapi-team-endpoint","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"epss":0.00199,"epssPercentile":0.10059,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-17T19:16:16.787473Z"},"ingestedAt":"2026-09-15T02:19:07.442Z","slug":"CVE-2026-91774","body":"## Overview\n\nYao through v1.0.0-rc22 authenticates but fails to authorize the GET /user/teams/:id endpoint, allowing any logged-in user to read full team records. Attackers can supply a known team identifier to retrieve sensitive team data including name, description, owner information, and settings without membership verification.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}