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CVE-2026-112000— Vanus 0.8.0 through 0.9.0 Missing Authorization in Gateway Streaming RPCs

Quick assessment

Affected
vanus-labs vanus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vanus 0.8.0 至 0.9.0 版本的网关中存在一个缺失授权检查的漏洞，该漏洞允许任何已认证用户在不经过权限验证的情况下调用 Subscribe、Ack 以及未注册的方法。攻击者可利用此漏洞提供其他租户的订阅 ID 来劫持该订阅，进而读取并确认其事件、导致合法消费者无法接收消息（资源饥饿），并通过 ListUser 接口枚举集群用户。

CVSS 7.6 · High
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I. Basic Information for CVE-2026-112000

Vulnerability Information
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Vulnerability Title
Vanus 0.8.0 through 0.9.0 Missing Authorization in Gateway Streaming RPCs
Source: CVE Program / CVE List V5
Vulnerability Description
Vanus 0.8.0 through 0.9.0 contains a missing authorization vulnerability in the gateway that allows any authenticated user to call Subscribe, Ack, and unregistered methods without permission checks. Attackers can supply another tenant's subscription ID to Subscribe to hijack it, read and acknowledge its events, starve the legitimate consumer, and enumerate cluster users via ListUser.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vanus-labs vanus 0.8.0 ~ 0.9.0 -

II. Public POCs for CVE-2026-112000

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III. Intelligence Information for CVE-2026-112000

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Other References for CVE-2026-112000 (4)

Same Patch Batch · vanus-labs · 2026-10-18 · 3 CVEs total

CVE-2026-111998 9.8 CRITICAL Vanus 0.8.0 through 0.9.0 Default Admin Credentials via Gateway
CVE-2026-111999 7.5 HIGH Vanus 0.8.0 through 0.9.0 Missing Authentication via Gateway CloudEvents HTTP Receiver

IV. Related Vulnerabilities

Same product: vanus
Same vendor: vanus-labs
Same weakness: CWE-862

V. Comments for CVE-2026-112000

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