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Budibase CVE-2026-72857

| EUVDEUVD-2026-58506 HIGH
Insufficiently Protected Credentials (CWE-522)
2026-08-13 disclosure@vulncheck.com GHSA-95j2-62cr-h4p5
8.3
CVSS 4.0 · Vendor: vulncheck
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Severity by source

Vendor (vulncheck) PRIMARY
8.3 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/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
vuln.today AI
7.7 HIGH

Network-accessible read API requires only low-privilege auth (PR:L); scope changes to downstream MongoDB/Firebase systems (S:C); no integrity or availability impact directly from credential disclosure.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Primary rating from Vendor (vulncheck).

CVSS VectorVendor: vulncheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Aug 13, 2026 - 23:04 EUVD
Analysis Generated
Aug 13, 2026 - 22:37 vuln.today
CVE Published
Aug 13, 2026 - 22:17 cve.org
HIGH 8.3

DescriptionCVE.org

Budibase before 3.40.0 fails to redact datasource credentials stored in STRING typed fields, allowing authenticated users to read MongoDB connection strings and Firebase private keys in plaintext. Attackers with table read permissions can retrieve datasource configurations through the read API to obtain live backend database credentials and service account keys.

AnalysisAI

Credential plaintext exposure in Budibase before 3.40.0 allows any authenticated user with table read permissions to retrieve live MongoDB connection strings and Firebase private keys via the standard read API. The root failure is that STRING-typed datasource fields bypass the platform's credential redaction logic entirely, leaving secrets accessible through normal API calls. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate as low-privileged Budibase user
Delivery
Issue GET request to datasource read API
Exploit
Receive plaintext MongoDB connection string or Firebase private key
Execution
Connect directly to backend database or Firebase project
Impact
Exfiltrate or manipulate backend data

Vulnerability AssessmentAI

Exploitation Exploitation requires a valid Budibase user account with table read permissions - unauthenticated access is not possible per the CVSS PR:L metric. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 8.3 is well-calibrated to the actual risk profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated Budibase user with standard table read permissions sends a GET request to the platform's read API targeting a datasource configuration table. The API returns the full datasource record with the MongoDB connection string or Firebase private key in plaintext. …
Remediation Upgrade Budibase to version 3.40.0 or later, which introduces proper credential redaction for STRING-typed datasource fields. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, audit all Budibase instances to identify those running versions prior to 3.40.0 and document which users have table read permissions; simultaneously, contact Budibase for guidance on interim mitigation options. …

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CVE-2026-72857 vulnerability details – vuln.today

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