VULNERABILITY INTELLIGENCE
CVE-2026-70618
CVSS score4.3 MEDIUM
EPSS probability0.33%
CISA KEVNot currently listed
Published2026-08-05
Last modified2026-09-16
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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.
Weakness classification
- disclosure@vulncheck.com: CWE-862