CVE-2026-18911 Auth bypass in ManageEngine DataSecurity Plus

High 7.5 Published Updated

Unenrolled agents can bypass authentication to send requests to ManageEngine DataSecurity Plus, requiring an upgrade to secure the system.

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-2026-18911?

CVE-2026-18911 is a high-severity authentication bypass vulnerability in Zohocorp ManageEngine DataSecurity Plus, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ManageEngine DataSecurity Plus versions before 6310 are vulnerable to an agent authentication bypass, allowing unenrolled agents to send requests without proper authentication.

Weakness: CWE-20

Which versions are affected by CVE-2026-18911?

How do I fix CVE-2026-18911?

No fix has been published for CVE-2026-18911 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-18911 being exploited?

There is no known exploitation of CVE-2026-18911 in the wild and no public exploit code.

Sources

Also known as GHSA-qc75-qh59-qwjw.

Is CVE-2026-18911 in your software?

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