CVE-2026-69114

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductSpacebar Server

PublishedAug 10, 2026

First seenAug 10, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

Spacebar Server Spacebar Server8d126f401914d68fa8a97f7e5986dcfcc42de9a8 or later

Patches

github.com/spacebarchat/server/commit/8d126f401914d68fa8a97f7e5986dcfcc42de9a8

Vendor advisories

github.com/spacebarchat/server/security/advisories/GHSA-62g6-28hv-h6hc

Affected products

Product	Affected versions	Fixed in
Spacebar Server Spacebar Server	v < 8d126f401914d68fa8a97f7e5986dcfcc42de9a8	8d126f401914d68fa8a97f7e5986dcfcc42de9a8

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