CVE-2026-54350Public exploitNetwork attack vector

Unauthenticated collection-wide reads and writes via query injection

Published Jun 26, 2026 · Updated Jun 26, 2026

NoSQL injection in Budibase before 3.39.12 allows remote attackers to read or modify entire collections through a published PUBLIC query. Query validation blocks Handlebars markers but leaves JSON metacharacters unescaped, so a crafted parameter closes its string and adds fields that override the intended filter after JSON parsing. The endpoint requires no session when the query role is PUBLIC; reads expose all matched documents, while a published write query applies its builder-defined operation collection-wide.

CVSS severity10.0
Critical
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NoSQL injection in Budibase before 3.39.12 allows remote attackers to read or modify entire collections through a published PUBLIC query. Query validation blocks Handlebars markers but leaves JSON metacharacters unescaped, so a crafted parameter closes its string and adds fields that override the intended filter after JSON parsing. The endpoint requires no session when the query role is PUBLIC; reads expose all matched documents, while a published write query applies its builder-defined operation collection-wide.

The record

CVE
CVE-2026-54350
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
Budibase
Product
Budibase
Classifications
CWE-89, CWE-943, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.39.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Budibase · Budibaseversion=< 3.39.12

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-943Improper Neutralization of Special Elements in Data Query Logic
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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