CVE-2026-23477 Rocket.Chat Unauthorized Access to OAuth App Details

High 7.7 Published 14 Jan 2026 Updated 14 Jan 2026

Authenticated users can access sensitive OAuth client secrets via an unprotected API endpoint, potentially leading to credential theft.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-23477?

CVE-2026-23477 is a high-severity missing authorization vulnerability in Rocket.chat Rocket.chat, published on 14 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Rocket.Chat is an open-source, secure, fully customizable communications platform. In Rocket.Chat versions up to 6.12.0, the API endpoint GET /api/v1/oauth-apps.get is exposed to any authenticated user, regardless of their role or permissions. This endpoint returns an OAuth application, as long as the user knows its ID, including potentially sensitive fields such as client_id and client_secret. This vulnerability is fixed in 6.12.0.

Weakness: CWE-862, CWE-269

Which versions are affected by CVE-2026-23477?

It affects 1 product.

Products include Rocket.chat Rocket.chat.

How do I fix CVE-2026-23477?

No fix has been published for CVE-2026-23477 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-2026-23477 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23477 exists.

All Rocket.chat Rocket.chat vulnerabilities

Sources

Also known as GHSA-g4wm-fg3c-g4p2.