CVE-2026-40525— OpenViking < 0.3.9 Authentication Bypass via VikingBot OpenAPI
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I. Basic Information for CVE-2026-40525
Vulnerability Information
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Vulnerability Title
OpenViking < 0.3.9 Authentication Bypass via VikingBot OpenAPI
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenViking prior to version 0.3.9 contains an authentication bypass vulnerability in the VikingBot OpenAPI HTTP route surface where the authentication check fails open when the api_key configuration value is unset or empty. Remote attackers with network access to the exposed service can invoke privileged bot-control functionality without providing a valid X-API-Key header, including submitting attacker-controlled prompts, creating or using bot sessions, and accessing downstream tools, integrations, secrets, or data accessible to the bot.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
未能安全地进行程序失效(Failing Open)
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenViking 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenViking是Volcengine开源的一个人工智能代理的上下文数据库。 OpenViking c7bb167之前版本存在安全漏洞，该漏洞源于VikingBot OpenAPI HTTP路由表面存在身份验证绕过，当api_key配置值未设置或为空时，身份验证检查失败开放，可能导致远程攻击者无需提供有效X-API-Key标头即可调用特权机器人控制功能。
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)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| volcengine | OpenViking | 0 ~ 0.3.9 | - |
II. Public POCs for CVE-2026-40525
| # | POC Description | Source Link | Shenlong Link |
|---|
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- OpenViking Authentication Bypass via VikingBot OpenAPI | Advisories | VulnCheckthird-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-40525
IV. Related Vulnerabilities
Same product: OpenViking
Same vendor: volcengine
Same weakness: CWE-636
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V. Comments for CVE-2026-40525
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