Auth bypass in Vanna-ai Vanna
CVE-2026-5320
A vulnerability was detected in vanna-ai vanna up to 2.0.2. Affected by this vulnerability is an unknown functionality of the file /api/vanna/v2/ of the component Chat API Endpoint. Performing a manipulation results in missing authenticati…
Vulnerability class: Broken Authentication
EPSS: 0.001 (28.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Vanna-ai Vanna — versions 2.0.0, 2.0.1, 2.0.2
Weakness classification (CWE)
References
- VDB-354652 | vanna-ai vanna Chat API Endpoint v2 missing authentication (vdb-entry)
- VDB-354652 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #780727 | vanna-ai vanna 2.0.2 Missing Authentication on All API Endpoints (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-5320?
- CVE-2026-5320 is a high-severity vulnerability in Vanna-ai Vanna, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-04-02.
- How severe is CVE-2026-5320?
- High severity. CVSS v3 base score is 7.3 out of 10.