Hello Leonardo,
we noticed that the current version of Ultimate PDF 15.0.1 is not able to work with the latest version of Chromium (currently 151.0.7922.71).
In the last few versions of Chromium since 138.* a number of security fixes have been implemented. And if you look at the NVD database a lot of known issues are around with version 138.* right now.
However we can't install the latest version as it will provide an error with UltimatePDF.The cause of the error seems to be that also PuppeteerSharp needs to be updated. As PuppeteerSharp is part of the Forge Component. Is there any chance you can provide an update of this forge component with the latest version of PuppeteerSharp?That way a large number of security vulnerabilities can be fixed.Thank you