CVE-2026-19572 FlexNet Publisher lmadmin SOAP Authentication Bypass Vulnerability

Critical 9.3 Published Updated

Unauthenticated attackers can bypass SOAP authentication to gain privileged administrator access in FlexNet Publisher lmadmin.

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-2026-19572?

CVE-2026-19572 is a critical authentication bypass vulnerability in Flexera FlexNet Publisher, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A security vulnerability has been identified in FlexNet Publisher lmadmin. The vulnerability exists in a SOAP handler, where a hardcoded authentication bypass could allow an unauthenticated user to obtain a privileged administrator session without providing valid credentials.

Weakness: CWE-288

Which versions are affected by CVE-2026-19572?

How do I fix CVE-2026-19572?

No fix has been published for CVE-2026-19572 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-2026-19572 being exploited?

There is no known exploitation of CVE-2026-19572 in the wild and no public exploit code.

Sources

Also known as GHSA-98jh-cm22-cgp2.

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