CVE-2026-1836 Stored credentials in Redmine
An attacker with platform access can view stored login credentials, exposing sensitive user information in Redmine.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-1836?
CVE-2026-1836 is a medium-severity vulnerability in Redmine, published on 12 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The system stores the username and password from the login form after submitting the request. This could allow an attacker with access to the platform to return to the browser and view the login credentials.
Weakness: CWE-257
Which versions are affected by CVE-2026-1836?
How do I fix CVE-2026-1836?
Apply the vendor's patch.
Is CVE-2026-1836 being exploited?
There is no known exploitation of CVE-2026-1836 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-1836, GHSA-w8cj-56rx-3gpm, UBUNTU-CVE-2026-1836.