CVE-2019-19240: Embedthis GoAhead

Medium severity, CVSS 5.3. EPSS: 1.5% chance of exploitation in the next 30 days.

Embedthis GoAhead before 5.0.1 mishandles redirected HTTP requests with a large Host header. The GoAhead WebsRedirect uses a static host buffer that has a limited length and can overflow. This can cause a copy of the Host header to fail, leaving that buffer uninitialized, which may leak uninitialized data in a response.

Affected products

• Embedthis GoAhead: before 5.0.1 (fixed in 5.0.1)

Published 2019-11-22. Last modified 2026-06-17.