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CVE-2026-54350— Budibase: Anonymous NoSQL operator injection via published-app query templates

Quick assessment

Affected
Budibase budibase
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Budibase是英国Budibase公司开源的一个用于在几分钟内创建内部应用程序、工作流和管理面板的低代码平台。 Budibase 3.39.12之前版本存在安全漏洞，该漏洞源于enrichContext函数将参数值替换到JSON查询体中且验证器未转义JSON元字符，可能导致未经验证的攻击者通过特制参数值实现JSON重复键解析，从而读取或修改后端数据库集合中的全部文档。

CVSS 10.0 · Critical EPSS 0.54% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
Budibase budibase < 3.39.12 affected
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I. Basic Information for CVE-2026-54350

Vulnerability Information
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Vulnerability Title
Budibase: Anonymous NoSQL operator injection via published-app query templates
Source: CVE Program / CVE List V5
Vulnerability Description
Budibase is an open-source low-code platform. Prior to 3.39.12, an unauthenticated visitor of any published Budibase app reads every document of the backing MongoDB, CouchDB, Elasticsearch, DynamoDB-PartiQL, or REST-with-JSON-body collection and, where the builder has published a PUBLIC write query, modifies every document of that collection with one HTTP request. enrichContext at packages/server/src/sdk/workspace/queries/queries.ts:121-138 substitutes parameter values into the raw JSON body of a query, then JSON.parses the result. The validator validateQueryInputs at packages/server/src/api/controllers/query/index.ts:61-71 rejects only Handlebars markers ({{, }}) in user input and does not escape JSON metacharacters (", \, }). A parameter value containing a closing quote and additional keys lifts attacker-controlled fields into the parsed filter object. For Mongo find, the parsed filter passes directly to collection.find() (packages/server/src/integrations/mongodb.ts:506-510). Duplicate-key JSON parsing overrides the builder's {name: "..."} with {name: {$exists: true}} and returns every document. The same primitive against an updateMany query (mongodb.ts:577-585) widens the filter scope to the full collection while the builder-controlled $set body runs against every matched document. The authorized middleware at packages/server/src/middleware/authorized.ts:141-148 short-circuits when the query's role is PUBLIC. CSRF is not enforced on this path. POST /api/v2/queries/:queryId (packages/server/src/api/routes/query.ts:63) accepts the call with no session, only an x-budibase-app-id header that is public from the published-app URL. This vulnerability is fixed in 3.39.12.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Budibase SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Budibase是英国Budibase公司开源的一个用于在几分钟内创建内部应用程序、工作流和管理面板的低代码平台。 Budibase 3.39.12之前版本存在安全漏洞，该漏洞源于enrichContext函数将参数值替换到JSON查询体中且验证器未转义JSON元字符，可能导致未经验证的攻击者通过特制参数值实现JSON重复键解析，从而读取或修改后端数据库集合中的全部文档。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Budibase budibase < 3.39.12 -

II. Public POCs for CVE-2026-54350

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9219 chars
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III. Intelligence Information for CVE-2026-54350

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Vendor Advisories for CVE-2026-54350 (1)

Same Patch Batch · Budibase · 2026-06-26 · 7 CVEs total

CVE-2026-54352 9.6 CRITICAL Budibase: Arbitrary file read by workspace-builder via PWA-zip symlink upload
CVE-2026-54353 8.5 HIGH Budibase: Potential SSRF DNS rebinding bypass in outbound fetch validation
CVE-2026-54351 8.2 HIGH Budibase: Mass Assignment in Webhook Trigger Allows Cross-Workspace Automation Execution v
CVE-2026-50136 7.4 HIGH Budibase: Unauthenticated S3 signed upload URL generation allows arbitrary writes with sto
CVE-2026-50132 7.3 HIGH Budibase: Chat Identity Link Hijacking via Missing Consent & CSRF — Account Impersonation
CVE-2026-50137 Budibase: POST /api/attachments/:datasourceId/url is unauthenticated and lets anonymous ca

IV. Related Vulnerabilities

Same product: budibase
Same vendor: Budibase
Same weakness: CWE-89

V. Comments for CVE-2026-54350

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