CVE-2026-70618 — Spacebar Server Missing Authorization via member-ids Endpoint
Spacebar Server before commit 51da17c contains a missing authorization vulnerability that allows any authenticated user to enumerate complete guild membership by querying the GE…
Published: 2026-08-05 · CVSS: 5.3 · CVSS 4.0
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 · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7