CVE-2026-5320CWE-287CWE-306

vanna-ai vanna Chat API Endpoint v2 missing authentication

Medium · published April 2, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
50.7
In the wild
Unconfirmed
What it is

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 authentication. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00654 · 50.7th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-306 · Missing Authentication for Critical Function
Published
2026-04-02T03:45Z
EPSS history
Timeline
  • 02 APR 03:45Z
    vanna-ai vanna Chat API Endpoint v2 missing authentication
    cvelistv5