CVE-2026-91774
Yao through v1.0.0-rc22 Missing Authorization via OpenAPI team endpoint
- State
- Published
- Severity
- 5.3 Medium
- Published
- Sep 15, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
yaoYaoApp |
|
References
- https://github.com/YaoApp/yao/issues/1553issue-tracking
- https://github.com/YaoApp/yao/blob/v1.0.0-rc22/openapi/user/team.go#L80-L149technical-description
- https://github.com/YaoApp/yao/blob/v1.0.0-rc22/openapi/oauth/providers/user/team.go#L37-L55technical-description
- https://github.com/YaoApp/yaoproduct
- VulnCheck Advisory: Yao through v1.0.0-rc22 Missing Authorization via OpenAPI team endpointthird-party-advisory
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