TI-2026-29272 Aliases CVE-2026-40525 GHSA-jgq2-vq69-gr6h

OpenViking < 0.3.9 Authentication Bypass via VikingBot OpenAPI

MEDIUM 48CWE-636Published 2026-04-17 · Updated 2026-11-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: —
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00571 47th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed OpenViking (volcengine): 0.3.9openviking (PyPI): 0.3.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Volcengine	OpenViking	before 0.3.9	0.3.9	Patch available	CNA
—	openviking (PyPI)	before 0.3.9	0.3.9	Patch available	GHSA-jgq2-vq69-gr6h

OpenViking VendorVolcengine Affected before 0.3.9 Fixed in 0.3.9 Patch available CNA
openviking (PyPI) Vendor— Affected before 0.3.9 Fixed in 0.3.9 Patch available GHSA-jgq2-vq69-gr6h

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:volcengine:openviking::::::::	before 0.3.9	Vulnerable	Volcengine

cpe:2.3:a:volcengine:openviking:*:*:*:*:*:*:*:* Versions before 0.3.9 Vulnerable ·Volcengine

Remediation

Fix · CNA OpenViking (volcengine) Fixed in 0.3.9
Fix · GHSA-jgq2-vq69-gr6h openviking (PyPI) Fixed in 0.3.9 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-40525
2026-10-03 Alias added: GHSA-jgq2-vq69-gr6h
2026-10-25 EPSS moved to the below the 50th percentile

References

Other 2

TI-2026-22780 OpenViking .ovpack Import ZIP Slip Path Traversal CVSS 4.0HIGH 8.4
TI-2026-18208 OpenViking < 0.3.3 Missing Authorization via Task Polling CVSS 4.0MEDIUM 6.9
TI-2026-27215 OpenViking 0.2.5 < 0.2.14 Bot Proxy Endpoints Allow Unauthenticated Access CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences