CVE-2026-40525— OpenViking < 0.3.9 Authentication Bypass via VikingBot OpenAPI
Possible ATT&CK Techniques 1AI
T1078 · Valid AccountsAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| volcengine | OpenViking | < 0.3.9 | affected |
c7bb1676f4d037609f041bf39e4e2bd52e8f9820 | unaffected |
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
未能安全地进行程序失效(Failing Open)
Source: CVE Program / CVE List V5
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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Patches & Fixes for CVE-2026-40525 (2)
Vendor Advisories for CVE-2026-40525 (1)
IV. Related Vulnerabilities
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OpenViking 0.2.5 < 0.2.14 Bot Proxy Endpoints Allow Unauthen - CVE-2026-28518
OpenViking .ovpack Import ZIP Slip Path Traversal - CVE-2026-22207
OpenViking Missing root_api_key Allows Anonymous ROOT Access
Same vendor: volcengine
- CVE-2026-13507
volcengine OpenViking Local VectorDB Primary-key Label str_t - CVE-2026-22680
OpenViking < 0.3.3 Missing Authorization via Task Polling - CVE-2026-34999
OpenViking 0.2.5 < 0.2.14 Bot Proxy Endpoints Allow Unauthen - CVE-2026-28518
OpenViking .ovpack Import ZIP Slip Path Traversal - CVE-2026-22207
OpenViking Missing root_api_key Allows Anonymous ROOT Access
Same weakness: CWE-636
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