CVE-2026-69114
Spacebar Server Cross-Channel Message Deletion via Permission Check Bypass
HIGH 7.1EPSS 0.4%
Spacebar Server before commit 8d126f4 contains a cross-channel message deletion vulnerability in the single-delete and bulk-delete message handlers that fail to scope message queries to the requested channel. Authenticated users with MANAGE_MESSAGES permission in any controlled channel can delete arbitrary messages in other channels by routing delete requests through their own channel.
- Affected
- Spacebar Server
- CVSS v4.0 VULNCHECK
- 7.1 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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 v3.1 VULNCHECK
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - EPSS
- 0.39% chance of exploitation in the next 30 days, 31st percentile
- Published
- 2026-08-10
- Updated
- 2026-09-17
Proof-of-concept exploits (2)
- spacebarchat/server/security/advisories/GHSA-62g6-28hv-h6hc
- spacebarchat/server/issues/16852207★ · 2026-10-17