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CVE-2026-405259.1CriticalCWE-636

CVE-2026-40525: OpenViking < 0.3.9 Authentication Bypass via VikingBot OpenAPI

volcengine · OpenViking

Vendor fix available · Affected: volcengine OpenViking · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.6%probability of exploitation in the next 30 days
48th percentile
050100

Higher than 48% of scored CVEs

9.1CriticalCVSS 3.1
LowCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • volcengine · OpenVikingbefore 0.3.9

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Published
April 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-40525 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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