CVE-2026-80346

StarRocks performs no privilege check when a legacy synchronous materialized view is dropped. Every other statement type routed through AuthorizerStmtVisitor calls into Authorizer before execution, but visitDropMaterializedViewStatement returns immediately with a comment stating the check happens in execution logic. That holds only for asynchronous materialized views: LocalMetastore.dropMaterializedView calls Authorizer.checkMaterializedViewAction inside a branch taken when the resolved table is a MaterializedView. A legacy synchronous materialized view is stored as a rollup index on an OlapTable rather than a MaterializedView, so the other branch runs, reaching AlterJobMgr.processDropMaterializedView and MaterializedViewHandler, neither of which contains any Authorizer call. The former locates the target by scanning every OlapTable in the named database for a matching rollup index, and the latter validates only table state and name conflicts. Any authenticated account can therefore drop a legacy synchronous materialized view belonging to any database, holding no grant on the view, the base table or the database, and the drop is indistinguishable from an authorized one.

• CWE-862

• https://github.com/StarRocks/starrocks
• https://github.com/StarRocks/starrocks/blob/3.5.19/fe/fe-core/src/main/java/com/starrocks/alter/AlterJobMgr.java
• https://github.com/StarRocks/starrocks/blob/3.5.19/fe/fe-core/src/main/java/com/starrocks/sql/analyzer/AuthorizerStmtVisitor.java
• https://github.com/StarRocks/starrocks/issues/76566
• https://www.vulncheck.com/advisories/starrocks-through-4.0.13-missing-authorization-on-drop-materialized-view-for-legacy-synchronous-materialized-views
• https://github.com/StarRocks/starrocks/issues/76566

Published

Aug 26, 2026

Last Modified

Aug 28, 2026

Status

Received

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