CVE-2026-69114
Spacebar Server Cross-Channel Message Deletion via Permission Check Bypass
- State
- Published
- Severity
- 7.1 High
- Published
- Aug 10, 2026
- Updated
- Sep 17, 2026
- Reserved
- Aug 3, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 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 | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
Spacebar ServerSpacebar Server |
|
References
- GitHub Security Advisory (GHSA-62g6-28hv-h6hc)vendor-advisoryexploit
- Researcher Disclosuretechnical-descriptionexploitissue-tracking
- Patch Commitpatch
- https://www.vulncheck.com/advisories/spacebar-server-cross-channel-message-deletion-via-permission-check-bypassthird-party-advisory
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