Answer in brief
CVE-2026-91774 records a Medium severity (CVSS 5.3) vulnerability in Yao through v1.0.0-rc22 Missing Authorization via OpenAPI team endpoint. The current sources do not mark it as known exploited. The current feed maps YaoApp/yao (generic), YaoApp/yao (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps YaoApp/yao (generic), YaoApp/yao (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| YaoApp/yaogeneric | 0 | Not reported |
| YaoApp/yaogeneric | >=0 <=1.0.0-rc22 | Not reported |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.