CVE-2026-69114
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.
Weakness
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.
References
- https://github.com/spacebarchat/server/commit/8d126f401914d68fa8a97f7e5986dcfcc42de9a8
- https://github.com/spacebarchat/server/issues/1685
- https://github.com/spacebarchat/server/security/advisories/GHSA-62g6-28hv-h6hc
- https://www.vulncheck.com/advisories/spacebar-server-cross-channel-message-deletion-via-permission-check-bypass
- https://github.com/spacebarchat/server/security/advisories/GHSA-62g6-28hv-h6hc
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