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CVE-2026-70618— Spacebar Server Missing Authorization via member-ids Endpoint

Quick assessment

Affected
Spacebar Server Spacebar Server
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.

Spacebar Server是Spacebar团队的一款硬件服务器。 Spacebar Server 51da17c之前版本存在授权问题漏洞，该漏洞源于缺少授权验证，导致经过身份验证的用户在未验证guild成员资格的情况下，通过查询GET /guilds/{guild_id}/roles/{role_id}/member-ids端点即可枚举完整的guild成员，甚至可利用该端点缺少权限检查的路由处理程序检索任意guild的完整成员用户ID列表。

CVSS 4.3 · Medium EPSS 0.33% · P24

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
Spacebar Server Spacebar Server ≤ 51da17cf19d476483ee44e5f832d1ebdcd844f88 affected
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I. Basic Information for CVE-2026-70618

Vulnerability Information
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Vulnerability Title
Spacebar Server Missing Authorization via member-ids Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Spacebar Server before commit 51da17c contains a missing authorization vulnerability that allows any authenticated user to enumerate complete guild membership by querying the GET /guilds/{guild_id}/roles/{role_id}/member-ids endpoint without guild membership verification. Attackers can exploit the unprotected route handler in the roles member-ids endpoint, which lacks permission checks present in sibling endpoints, to retrieve the full list of member user IDs for any guild on the instance using only a valid bearer token and a known guild ID.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Spacebar Server 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spacebar Server是Spacebar团队的一款硬件服务器。 Spacebar Server 51da17c之前版本存在授权问题漏洞，该漏洞源于缺少授权验证，导致经过身份验证的用户在未验证guild成员资格的情况下，通过查询GET /guilds/{guild_id}/roles/{role_id}/member-ids端点即可枚举完整的guild成员，甚至可利用该端点缺少权限检查的路由处理程序检索任意guild的完整成员用户ID列表。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Spacebar Server Spacebar Server 0 ~ 51da17cf19d476483ee44e5f832d1ebdcd844f88 -

II. Public POCs for CVE-2026-70618

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III. Intelligence Information for CVE-2026-70618

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Patches & Fixes for CVE-2026-70618 (1)

Vendor Advisories for CVE-2026-70618 (2)

IV. Related Vulnerabilities

Same product: Spacebar Server
Same vendor: Spacebar Server
Same weakness: CWE-862

V. Comments for CVE-2026-70618

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