CVE-2026-14227 Insufficient session expiration in MikroTik RouterOS
Authenticated users retain elevated permissions after group changes or timeouts, allowing unauthorized data access in MikroTik RouterOS devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-14227?
CVE-2026-14227 is a medium-severity vulnerability in MikroTik RouterOS, published on 30 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An API session‑management flaw in products with the MikroTik RouterOS API enabled are vulnerable to a Insufficient Session Expiration vulnerability. This could allow active sessions to retain their previous permission set after inactivity timeouts or user‑group changes. As a result, an authenticated user whose permissions have been reduced may continue accessing information.
Weakness: CWE-613
Which versions are affected by CVE-2026-14227?
How do I fix CVE-2026-14227?
No fix has been published for CVE-2026-14227 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-14227 being exploited?
There is no known exploitation of CVE-2026-14227 in the wild and no public exploit code.
Sources
Also known as GHSA-x9w7-jgwj-cp2f.