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Vulnerabilities CVE-2026-40525

CVE-2026-40525

Critical
Open
TLP:CLEAR

OpenViking < 0.3.9 Authentication Bypass via VikingBot OpenAPI

NVD CVE.org
Critical Infrastructure

AI Analysis

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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.

Details

CVSS Score
9.1
EPSS Score
0.57%

44.4th percentile

CVSS Vector
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
Confidence
90%
Published
Apr 17, 2026
Last Modified
Jul 14, 2026
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