CVEvulnerability
CVE-2026-70618
5.3 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-08-05
- Last modified
- 2026-09-16
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-862
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.
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://github.com/spacebarchat/server/commit/51da17cf19d476483ee44e5f832d1ebdcd844f88 github.com
- https://github.com/spacebarchat/server/security/advisories/GHSA-p5cf-7hg9-gf65 github.com
- https://www.vulncheck.com/advisories/spacebar-server-missing-authorization-via-member-ids-endpoint www.vulncheck.com
- https://github.com/spacebarchat/server/security/advisories/GHSA-p5cf-7hg9-gf65 github.com