CVE-2026-18650 Missing Authorization Leading to Root Code Execution in HAVELSAN's Liman MYS
Missing authorization in Liman MYS allows attackers to escalate privileges and execute code as root.
- 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-2026-18650?
CVE-2026-18650 is a high-severity missing authorization vulnerability in HAVELSAN Inc. Liman MYS, published on 4 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Missing Authorization vulnerability in HAVELSAN Inc. Liman MYS allows Privilege Escalation.
This issue affects Liman MYS: from 2.2.3 before 2.3.1.
Weakness: CWE-862
Which versions are affected by CVE-2026-18650?
How do I fix CVE-2026-18650?
No fix has been published for CVE-2026-18650 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-2026-18650 being exploited?
There is no known exploitation of CVE-2026-18650 in the wild and no public exploit code.
Sources
Also known as GHSA-c8qw-pv9p-qhf7.