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CVE-2026-5320— vanna-ai vanna Chat API Endpoint v2 missing authentication

Quick assessment

Affected
vanna-ai vanna
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vanna是Vanna公司的一个个性化 AI SQL 代理。 vanna 2.0.2及之前版本存在访问控制错误漏洞，该漏洞源于组件Chat API Endpoint的文件/api/vanna/v2/缺少身份验证，可能导致远程攻击。

CVSS 7.3 · High EPSS 0.65% · P50

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-5320

Vulnerability Information
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Vulnerability Title
vanna-ai vanna Chat API Endpoint v2 missing authentication
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Vanna 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vanna是Vanna公司的一个个性化 AI SQL 代理。 vanna 2.0.2及之前版本存在访问控制错误漏洞，该漏洞源于组件Chat API Endpoint的文件/api/vanna/v2/缺少身份验证，可能导致远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vanna-ai vanna 2.0.0 -

II. Public POCs for CVE-2026-5320

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7211 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-5320

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Vendor Advisories for CVE-2026-5320 (2)

Other References for CVE-2026-5320 (1)

IV. Related Vulnerabilities

Same product: vanna
Same vendor: vanna-ai
Same weakness: CWE-306

V. Comments for CVE-2026-5320

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