CVE-2026-91774

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 v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/YaoApp/yao
https://github.com/YaoApp/yao/blob/v1.0.0-rc22/openapi/oauth/providers/user/team.go#L37-L55
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-authorization-via-openapi-team-endpoint

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-15 02:16

Updated : 2026-09-15 02:16

NVD link : CVE-2026-91774

Mitre link : CVE-2026-91774

CVE.ORG link : CVE-2026-91774

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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