CVE-2026-73618 json
Budibase Server before 3.40.0 NoSQL Injection via JSON Parameter
published 2026-07-24 3 mo ago modified 2026-10-24 15 d ago also GHSA-qw6m-8fw2-2v64 , EUVD-2026-57822
- cvss
- 8.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- budibase server 3.40.0
- github.com/Budibase/budibase@2d6c1d1 commit
- github.com/Budibase/budibase#18907 pull request
- github.com/Budibase/budibase/releases/tag/3.39.9 release
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Budibase/budibase/security/advisories/GHSA-qw6m-8fw2-2v64 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @budibase/server | <=3.38.1 |
no fix listed |
Affected products
- budibase server
Classification
- Weakness
-
- CWE-943 Improper Neutralization of Special Elements in Data Query Logic
References
-
github.com
/Budibase/budibase/pull/18907
web
-
github.com
/Budibase/budibase/commit/2d6c1d17cff8a653adbb2f9003eda9de38c7670f
web
-
github.com
/Budibase/budibase/security/advisories/GHSA-qw6m-8fw2-2v64
vendor-advisory, exploit, web
-
vulncheck.com
/advisories/budibase-server-before-nosql-injection-via-json-parameter
third-party-advisory
-
github.com
/Budibase/budibase
package
-
github.com
/Budibase/budibase/releases/tag/3.39.9
web
Sources
- CVE List CVE-2026-73618
- GitHub Advisory GHSA-qw6m-8fw2-2v64
- NVD CVE-2026-73618
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.