Vulnerability in Budibase Server
CVE-2026-73618
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.005 (40.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Budibase Server — versions 0, 3.40.0
Weakness classification (CWE)
References
- github.com/Budibase/budibase/security/advisories/GHSA-qw6m-8fw2-2v64 (vendor-advisory)
- www.vulncheck.com/advisories/budibase-server-before-nosql-injection-via-json-pa… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-73618?
- CVE-2026-73618 is a high-severity vulnerability in Budibase Server, classified under Improper Neutralization of Special Elements in Data Query Logic. CVSS score: 8.3/10. Published 2026-08-13.
- How severe is CVE-2026-73618?
- High severity. CVSS v3 base score is 8.3 out of 10.