Vulnerability Description
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 name, description, owner information, and settings without membership verification.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/YaoApp/yao
- https://github.com/YaoApp/yao/blob/v1.0.0-rc22/openapi/oauth/providers/user/team
- https://github.com/YaoApp/yao/blob/v1.0.0-rc22/openapi/user/team.go#L80-L149
- https://github.com/YaoApp/yao/issues/1553
- https://www.vulncheck.com/advisories/yao-through-1.0.0-rc22-missing-authorizatio
FAQ
What is CVE-2026-91774?
CVE-2026-91774 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 re...
How severe is CVE-2026-91774?
CVE-2026-91774 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-91774?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.