Cross-Channel Message Deletion Vulnerability in Spacebar Server
CVE-2026-69114

7.1HIGH

Key Information:

Vendor

Spacebar Server

Status
Spacebar Server
Vendor
CVE Published:
10 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-69114?

The Spacebar Server prior to commit 8d126f4 exhibits a vulnerability allowing authenticated users with MANAGE_MESSAGES permission to delete messages across different channels. This flaw arises from the inadequate scoping of message deletion requests, enabling malicious actors to exploit the deletion mechanisms by rerouting their requests through a channel they control. As a result, users can inadvertently or maliciously remove messages from other channels, misusing their permissions and posing a significant risk to message integrity within the platform.

Affected Version(s)

Spacebar Server 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-69114 - Proof of Concept

CVE-2026-69114 - Proof of Concept

References

https://github.com/spacebarchat/server/security/advisorie...
vendor-advisoryexploit
https://github.com/spacebarchat/server/issues/1685
technical-descriptionexploit
https://github.com/spacebarchat/server/commit/8d126f40191...
patch

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.