Unauthenticated code execution via incomplete AST traversal
Published Mar 7, 2026 · Updated Mar 7, 2026
SQL injection in Tencent WeKnora 0.2.11 and earlier allows remote attackers to execute code on the database server via crafted agent prompts. The validateNode function in internal/utils/inject.go does not recurse into PostgreSQL ArrayExpr or RowExpr children, so dangerous functions bypass validation. Exploitation requires the database_query tool, a reasoning agent that relays the crafted SQL, and PostgreSQL privileges sufficient for large-object export and library loading; code runs as the database user.
Summary
What happened
SQL injection in Tencent WeKnora 0.2.11 and earlier allows remote attackers to execute code on the database server via crafted agent prompts. The validateNode function in internal/utils/inject.go does not recurse into PostgreSQL ArrayExpr or RowExpr children, so dangerous functions bypass validation. Exploitation requires the database_query tool, a reasoning agent that relays the crafted SQL, and PostgreSQL privileges sufficient for large-object export and library loading; code runs as the database user.
The record
- CVE
- CVE-2026-30860
- Published
- Mar 7, 2026
- Updated
- Mar 7, 2026
- Vendor
- Tencent
- Product
- WeKnora
- Classifications
- CWE-89, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 7, 2026CVE publishedPublication date reported by the CVE source.
- Mar 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=< 0.2.12
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
- Upstream ArrayExpr SQL injection proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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