CVE-2026-73300 — @budibase/server
CRITICALCVE-2026-73300 is a critical-severity (CVSS 9.6) SQL Injection vulnerability in @budibase/server. No vendor fix is recorded yet; mitigation options are listed below.
Budibase: SQL Injection via `multipleStatements: true`
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-73300.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2026-73300 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 379,145 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
@budibase/servernpmDescription
Summary
A critical SQL injection vulnerability was discovered in Budibase's MySQL integration that allows remote attackers to execute arbitrary SQL commands.
Details
Vulnerability Type
SQL Injection
Description
The MySQL integration component in Budibase is configured with multipleStatements: true, enabling execution of multiple SQL statements in a single query. Attackers can inject malicious SQL commands through user input fields, leading to complete database compromise.
Location
// File: packages/server/src/integrations/mysql.ts
// Line: 173
this.config = {
...config,
typeCast: defaultTypeCasting,
multipleStatements: true, // VULNERABLE
timezone: "Z",
}
Proof of Concept
Exploit
const mysql = require('mysql2');
// Budibase vulnerable configuration
const connection = mysql.createConnection({
host: 'localhost',
user: 'root',
password: 'password',
multipleStatements: true, // Vulnerable setting
timezone: "Z"
});
// Attack: Data destruction
connection.query(
`SELECT * FROM users WHERE id = 1; DROP TABLE sensitive_data; --`,
(err, results) => {
if (!err) console.log("Table dropped successfully");
}
);
Impact
- Data Destruction: Execute DROP TABLE, DELETE commands
- Data Theft: Exfiltrate data via SELECT INTO OUTFILE
- Privilege Escalation: Grant database admin privileges
- Denial of Service: Disrupt service operations
- Complete Database Compromise: Full control over database
Remediation
Patch
--- a/packages/server/src/integrations/mysql.ts
+++ b/packages/server/src/integrations/mysql.ts
@@ -170,7 +170,7 @@ class MySQLIntegration extends Sql implements DatasourcePlus {
this.config = {
...config,
typeCast: defaultTypeCasting,
- multipleStatements: true,
+ multipleStatements: false,
timezone: "Z",
}
}
Workarounds
- Temporarily disable MySQL integration
- Implement web application firewall (WAF)
- Restrict database user privileges
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @budibase/server | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @budibase/server, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
No patched version of @budibase/server has shipped for CVE-2026-73300 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
Until you can upgrade, make sure every query built from user input uses parameterised statements or a prepared-statement API rather than string concatenation, and reduce the database account's privileges so an injected query cannot read or alter data beyond what the feature needs.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-73300 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2026-73300. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-73300 in your dependencies?
O3 Security finds CVE-2026-73300 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.