CVE-2020-26118: Smartbear Collaborator

High severity, CVSS 8.8. EPSS: 3.8% chance of exploitation in the next 30 days.

In SmartBear Collaborator Server through 13.3.13302, use of the Google Web Toolkit (GWT) API introduces a post-authentication Java deserialization vulnerability. The application's UpdateMemento class accepts a serialized Java object directly from the user without properly sanitizing it. A malicious object can be submitted to the server via an authenticated attacker to execute commands on the underlying system.

Affected products

• Smartbear Collaborator: up to and including 13.3.13302

Published 2021-01-11. Last modified 2026-06-17.