CVE-2026-40525 — Vulnerability in openviking — CVE Details

CRITICAL

OpenViking: Unauthenticated remote bot control via OpenAPI HTTP routes

Published April 17, 2026Updated September 10, 2026Source: osv

Summary

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.

Advisory Timeline

First published April 17, 2026 (178 days ago).
Last revised September 10, 2026 — 145 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip

Update openviking to 0.3.9 or later

pip install "openviking>=0.3.9"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

Package	Ecosystem	Affected	Fixed In
openviking	pypi	0.2.10.dev45, 0.2.10.dev50, 0.2.11, 0.2.12 (+10 more)	0.3.9

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-636
View on MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.1 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

Frequently Asked Questions

What is CVE-2026-40525?: OpenViking: Unauthenticated remote bot control via OpenAPI HTTP routes This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.1/10).
How do I check if my project is affected by CVE-2026-40525?: CVE-2026-40525 affects openviking. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-40525 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

9.1

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-jgq2-vq69-gr6h

PYSEC-2026-438

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