CVE-2026-25043 Budibase: Unauthenticated Password Reset Endpoint Lacks Rate Limiting, Enabling Email Flooding

Medium 5.3 Published 3 Apr 2026 Updated 3 Apr 2026

Unauthenticated attackers can flood user inboxes with password reset emails due to missing rate limiting, causing denial of service.

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-2026-25043?

CVE-2026-25043 is a medium-severity denial of service vulnerability in budibase, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Budibase is an open-source low-code platform. Prior to version 3.23.25, a business logic vulnerability exists in Budibase’s password reset functionality due to the absence of rate limiting, CAPTCHA, or abuse prevention mechanisms on the “Forgot Password” endpoint. An unauthenticated attacker can repeatedly trigger password reset requests for the same email address, resulting in hundreds of password reset emails being sent in a short time window. This enables large-scale email flooding, user harassment, denial of service (DoS) against user inboxes, and potential financial and reputational impact for Budibase. This issue has been patched in version 3.23.25.

Weakness: CWE-770

Which versions are affected by CVE-2026-25043?

It affects 1 product.

Products include Budibase Budibase.

How do I fix CVE-2026-25043?

No fix has been published for CVE-2026-25043 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-2026-25043 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-25043 exists.

Sources

Also known as GHSA-277c-prw2-rqgh.