{"id":"CVE-2026-70618","title":"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 wit…","summary":"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 wit…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-862"],"published":"2026-08-05","updated":"2026-09-16","sourceUpdated":"2026-09-16T20:34:39.840","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70618","references":[{"url":"https://github.com/spacebarchat/server/commit/51da17cf19d476483ee44e5f832d1ebdcd844f88","label":"disclosure@vulncheck.com"},{"url":"https://github.com/spacebarchat/server/security/advisories/GHSA-p5cf-7hg9-gf65","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/spacebar-server-missing-authorization-via-member-ids-endpoint","label":"disclosure@vulncheck.com"},{"url":"https://github.com/spacebarchat/server/security/advisories/GHSA-p5cf-7hg9-gf65","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00243,"epssPercentile":0.15729,"ingestedAt":"2026-09-16T21:05:36.834Z","slug":"CVE-2026-70618","body":"## Overview\n\nSpacebar 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}