Authenticated SQL injection via recursive CTE concatenation
Published May 7, 2026 · Updated May 7, 2026
SQL injection in NocoBase before 2.0.39 allows remote authenticated users to read or alter database data through recursive eager loading. The queryParentSQL() function interpolates database-derived string primary keys into a recursive CTE IN clause instead of binding them as parameters. Record-creation permission on a tree collection with string primary keys is required; error-based extraction can disclose arbitrary database values.
Summary
What happened
SQL injection in NocoBase before 2.0.39 allows remote authenticated users to read or alter database data through recursive eager loading. The queryParentSQL() function interpolates database-derived string primary keys into a recursive CTE IN clause instead of binding them as parameters. Record-creation permission on a tree collection with string primary keys is required; error-based extraction can disclose arbitrary database values.
The record
- CVE
- CVE-2026-41640
- Published
- May 7, 2026
- Updated
- May 7, 2026
- Vendor
- NocoBase
- Product
- NocoBase
- Classifications
- CWE-89, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 7, 2026CVE publishedPublication date reported by the CVE source.
- May 7, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.0.39
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- Recursive eager-loading SQL injection proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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