Critical

OpenViking: Unauthenticated remote bot control via OpenAPI HTTP routes

  • Disclosed: 17.04.2026
  • Updated: 11.10.2026 15:17

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 software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) openviking < 0.3.9 0.3.9

References

CVSS score 9.1/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-636
Platform
Python (PyPI)
Package
openviking
Disclosed
17.04.2026
Updated
11.10.2026 15:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-438 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-jgq2-vq69-gr6h - CC BY 4.0

Vulnerability history: openviking

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
3
First → latest
03.2026 04.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 1
  • Medium 1

Disclosures per year

  1. 2026: 3
  1. OpenViking: Unauthenticated remote bot control via OpenAPI HTTP routes this entry
    Critical · 9.1 CVE-2026-40525 < 0.3.9 0.3.9
  2. High · 7.8 CVE-2026-28518 <= 0.2.1 no fix

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