Vanus 0.8.0 through 0.9.0 contains a default credentials vulnerability that allows unauthenticated remote attackers to gain cluster-admin access by using the hardcoded admin token. Attackers can send the fixed Bearer token to the gateway gRPC proxy port to manage namespaces, eventbuses, users, tokens, and role bindings, and read or publish events.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00533.

Exploitation poc

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
vanus-labs vanus unaffected
Version Status Constraints
0.8.0 affected ≤ 0.9.0

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/controller/tenant/controller.go#L449-L500 cve-icon cve-icon
https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/primitive/constants.go#L37 cve-icon cve-icon
https://github.com/vanus-labs/vanus/issues/647 cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-default-admin-credentials-via-gateway cve-icon cve-icon
History

Mon, 19 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 19 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Vanus-labs
Vanus-labs vanus
Vendors & Products Vanus-labs
Vanus-labs vanus

Sun, 18 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description Vanus 0.8.0 through 0.9.0 contains a default credentials vulnerability that allows unauthenticated remote attackers to gain cluster-admin access by using the hardcoded admin token. Attackers can send the fixed Bearer token to the gateway gRPC proxy port to manage namespaces, eventbuses, users, tokens, and role bindings, and read or publish events.
Title Vanus 0.8.0 through 0.9.0 Default Admin Credentials via Gateway
Weaknesses CWE-1392
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-19T18:43:52.466Z

Reserved: 2026-10-18T01:22:26.287Z

Link: CVE-2026-111998

cve-icon Vulnrichment

Updated: 2026-10-19T18:43:29.803Z

cve-icon NVD

Status : Deferred

Published: 2026-10-18T12:17:11.730

Modified: 2026-10-19T21:14:14.150

Link: CVE-2026-111998

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-19T12:53:31Z

Weaknesses