CVE-2026-72851 Budibase before 3.40.0 SQL Injection via Unauthenticated Webhook

Critical 9.0 Published Updated

Unauthenticated attackers can inject SQL via webhooks to read or modify data in connected databases using builder credentials.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-72851?

CVE-2026-72851 is a critical SQL injection vulnerability in budibase server, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Budibase before 3.40.0 contains an unauthenticated SQL injection vulnerability in webhook-triggered automations with EXECUTE_QUERY steps. Attackers can POST attacker-controlled JSON to the webhook trigger endpoint to inject SQL payloads that execute with builder-configured database credentials, enabling data exfiltration, modification, and persistence in connected datasources like Snowflake.

Weakness: CWE-89

Which versions are affected by CVE-2026-72851?

How do I fix CVE-2026-72851?

No fix has been published for CVE-2026-72851 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-72851 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-72851 exists.

Sources

Also known as GHSA-x389-5jg5-q6vh, GHSA-x7h8-ww3q-xv7c.

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