CVE-2026-48929 Missing authorization in Rocket.Chat
Unauthenticated attackers can permanently delete uploaded files in Rocket.Chat by exploiting a missing authorization check in the file deletion method.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-48929?
CVE-2026-48929 is a high-severity missing authorization vulnerability in Rocket.chat Rocket.chat, published on 16 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1.6, <8.0.7, <7.13.9, and <7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When called via an unauthenticated DDP WebSocket connection, Meteor.userId() returns null, causing the authorization check to be skipped. Execution falls through to FileUpload.getStore('Uploads').deleteById(fileID), which removes the file from storage and database unconditionally. File IDs are discoverable from public channel message payloads and download URLs.
Weakness: CWE-287
Which versions are affected by CVE-2026-48929?
It affects 1 product.
Products include Rocket.chat Rocket.chat.
How do I fix CVE-2026-48929?
No fix has been published for CVE-2026-48929 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-48929 being exploited?
There is no known exploitation of CVE-2026-48929 in the wild and no public exploit code.
Other vulnerabilities in Rocket.chat Rocket.chat
Sources
Also known as GHSA-f55j-xv27-8cwj.