CVE-2026-91774: Yaoapp Yao

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Yaoapp Yao: up to and including 1.0.0-rc22

Published 2026-09-15. Last modified 2026-09-23.