# CVE-2026-69114: Spacebar Server Cross-Channel Message Deletion via Permission Check Bypass

> Authenticated users with message management permissions can delete arbitrary messages in other channels due to missing channel scoping in delete handlers.

- **Severity:** High 7.1 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Aug 2026
- **Updated:** 17 Sep 2026
- **Also known as:** GHSA-62g6-28hv-h6hc

## What is CVE-2026-69114?

CVE-2026-69114 is a high-severity missing authorization vulnerability in Spacebar Server, published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-69114?


## How do I fix CVE-2026-69114?

No fix has been published for CVE-2026-69114 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-69114 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-69114 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-69114 and fix it if it is affected.

What it is: CVE-2026-69114 is a high-severity missing authorization vulnerability in Spacebar Server, published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-69114 exists.

Affected product: Spacebar Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-69114/ (Markdown: https://insights.sbomify.com/CVE-2026-69114/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-69114
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-69114
- OSV: https://osv.dev/vulnerability/CVE-2026-69114

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-69114/
Summaries are generated and may contain mistakes; the official description above is the record.