Description
A flaw has been found in vanna-ai vanna up to 2.0.2. Affected by this issue is some unknown functionality of the component FastAPI/Flask Server. Executing a manipulation can lead to permissive cross-domain policy with untrusted domains. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Problem types
Permissive Cross-domain Policy with Untrusted Domains
Product status
2.0.1
2.0.2
Timeline
| 2026-04-01: | Advisory disclosed |
| 2026-04-01: | VulDB entry created |
| 2026-04-01: | VulDB entry last update |
Credits
Yu_Bao (VulDB User)
VulDB
References
vuldb.com/vuln/354653 (VDB-354653 | vanna-ai vanna FastAPI/Flask Server cross-domain policy)
vuldb.com/vuln/354653/cti (VDB-354653 | CTI Indicators (IOB, IOC))
vuldb.com/submit/780729 (Submit #780729 | vanna-ai vanna 2.0.2 CORS Origin Reflection with Credentials)
github.com/August829/CVEP/issues/14