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rust: Add config-derived table name barrier for SQL injection #374

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rust: Add config-derived table name barrier for SQL injection #374

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rust: Add config-derived table name barrier for SQL injection
chanel-y Jun 16, 2026
2e3d46e
Merge branch 'main' into fix/rust-sql-injection-fp
chanel-y Jul 22, 2026
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18 changes: 18 additions & 0 deletions rust/ql/lib/codeql/rust/security/SqlInjectionExtensions.qll
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Original file line number Diff line number Diff line change
Expand Up @@ -76,4 +76,22 @@ module SqlInjection {

private class FieldlessEnumTypeBarrier extends Barrier instanceof Barriers::FieldlessEnumTypeBarrier
{ }

/**
* A barrier for struct field accesses whose names suggest they hold table or
* column identifiers derived from application configuration rather than user input.
*
* Patterns like `self.events_table`, `self.table_name`, `self.view_table` are
* typically initialized at service startup from hardcoded strings or configuration,
* not from per-request user data.
*/
private class ConfigDerivedTableNameBarrier extends Barrier {
ConfigDerivedTableNameBarrier() {
exists(FieldExpr fe |
this.asExpr() = fe and
fe.getIdentifier().getText()
.regexpMatch("(?i).*(table|collection|schema|bucket|index|view)(_name)?$")
)
}
}
}
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