CVE-2026-40525
CRITICAL9.1EPSS 0.20%OpenViking: Unauthenticated remote bot control via OpenAPI HTTP routes
Published: 4/17/2026Modified: 5/5/2026
Description
OpenViking prior to commit c7bb167 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.
Affected packages (1)
- PyPI/openvikingfrom 0, < 0.3.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-40525
- PATCHhttps://github.com/volcengine/OpenViking
- WEBhttps://github.com/volcengine/OpenViking/commit/c7bb1676f4d037609f041bf39e4e2bd52e8f9820
- WEBhttps://github.com/volcengine/OpenViking/pull/1447
- WEBhttps://github.com/volcengine/OpenViking/releases/tag/v0.3.9
- WEBhttps://www.vulncheck.com/advisories/openviking-authentication-bypass-via-vikingbot-openapi