# CVE-2026-80346: StarRocks through 4.0.13 Missing Authorization on DROP MATERIALIZED VIEW for Legacy Synchronous Materialized Views

> An authenticated user can drop legacy synchronous materialized views in any database without proper authorization, leading to unauthorized data modification.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Aug 2026
- **Updated:** 28 Aug 2026
- **Also known as:** GHSA-97cx-wfjw-3m7v

## What is CVE-2026-80346?

CVE-2026-80346 is a high-severity missing authorization vulnerability in StarRocks, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

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.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-80346?


## How do I fix CVE-2026-80346?

No fix has been published for CVE-2026-80346 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-80346 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80346 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-80346 and fix it if it is affected.

What it is: CVE-2026-80346 is a high-severity missing authorization vulnerability in StarRocks, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-80346 exists.

Affected product: StarRocks. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-80346/ (Markdown: https://insights.sbomify.com/CVE-2026-80346/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-80346
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-80346
- OSV: https://osv.dev/vulnerability/CVE-2026-80346

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-80346/
Summaries are generated and may contain mistakes; the official description above is the record.