Budibase: MySQL DESCRIBE Backtick Injection via multipleStatements in Database Connector

published 2026-07-24 3 mo ago modified 2026-09-08 2 mo ago also GHSA-2xgg-r2wc-c5r2 , EUVD-2026-58526

cvss: 7.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

Budibase is an open-source low-code platform. Prior to 3.39.18, packages/server/src/integrations/mysql.ts enabled multipleStatements and inserted an unescaped tableName into a DESCRIBE statement. An attacker able to create a MySQL table with a backtick and stacked statement in its name could wait for a Budibase administrator to run schema discovery, causing the second statement to execute. The fix applies quoteMySqlIdentifier before constructing the query. This issue is fixed in version 3.39.18.

Patch / fix

links 4

github.com/Budibase/budibase@d232bd9 commit
github.com/Budibase/budibase@2c61f38 commit
github.com/Budibase/budibase#18989 pull request
github.com/Budibase/budibase/releases/tag/3.39.18 release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 mo ago (2026-08-14)

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.6	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
GitHub	3.1	7.6	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	@budibase/server	<=3.38.1	no fix listed

Affected products

Budibase budibase

Classification

Weakness

CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary