CVE-2026-73618 Budibase Server before 3.40.0 NoSQL Injection via JSON Parameter
Attackers with query write permission can inject JSON characters to bypass filters and read, modify, or delete arbitrary MongoDB documents.
- 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-2026-73618?
CVE-2026-73618 is a high-severity 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 Server before 3.40.0 contains a NoSQL injection vulnerability in the MongoDB query execution endpoint where user-supplied parameters are interpolated into JSON query templates without proper sanitization of JSON metacharacters. Attackers with query write permission can inject JSON structural characters to alter MongoDB queries, bypassing filters to read, modify, or delete arbitrary documents.
Weakness: CWE-943
Which versions are affected by CVE-2026-73618?
2 open source packages ship an affected version, including @budibase/server.
| Package | Affected | Fixed in |
|---|---|---|
@budibase/server npm | All versions to 3.38.1 | None |
@budibase/server npm | All versions to 3.38.1 | None |
How do I fix CVE-2026-73618?
No fix has been published for CVE-2026-73618 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-2026-73618 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73618 exists.
Sources
Also known as GHSA-qw6m-8fw2-2v64, GHSA-wg7g-xr7v-hf69.