CVE-2026-14854 WooCommerce Bookings < 3.11.0 - Unauthenticated Denial of Service
Unauthenticated attackers can cause a Denial of Service by exhausting server memory via a single request in the WooCommerce Bookings plugin.
- 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-2026-14854?
CVE-2026-14854 is a high-severity denial of service vulnerability in Unknown WooCommerce Bookings, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WooCommerce Bookings WordPress plugin before 3.11.0 does not limit a user-supplied value before using it to allocate memory in one of its unauthenticated AJAX actions, allowing unauthenticated attackers to exhaust server memory and cause a Denial of Service with a single request.
Weakness: CWE-400
Which versions are affected by CVE-2026-14854?
How do I fix CVE-2026-14854?
No fix has been published for CVE-2026-14854 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-14854 being exploited?
There is no known exploitation of CVE-2026-14854 in the wild and no public exploit code.
Sources
Also known as GHSA-j5fj-p46h-2j27.