# CVE-2025-1385: Fail input validation in clickhouse-library-bridge API could lead to RCE under specific configuration

> Attackers with table engine access can execute arbitrary code on ClickHouse servers if the library bridge feature is enabled.

- **Severity:** High 7.5 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Mar 2025
- **Updated:** 20 Mar 2025
- **Also known as:** UBUNTU-CVE-2025-1385

## What is CVE-2025-1385?

CVE-2025-1385 is a high-severity code injection vulnerability in ClickHouse OSS, published on 20 Mar 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

When the library bridge feature is enabled, the clickhouse-library-bridge exposes an HTTP API on localhost. This allows clickhouse-server to dynamically load a library from a specified path and execute it in an isolated process. Combined with the ClickHouse table engine functionality that permits file uploads to specific directories, a misconfigured server can be exploited by an attacker with privilege to access to both table engines to execute arbitrary code on the ClickHouse server.

You can check if your ClickHouse server is vulnerable to this vulnerability by inspecting the configuration file and confirming if the following setting is enabled:

<library_bridge>
   <port>9019</port>
</library_bridge>

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-1385?


## How do I fix CVE-2025-1385?

No fix has been published for CVE-2025-1385 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-1385 being exploited?

There is no known exploitation of CVE-2025-1385 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-1385 and fix it if it is affected.

What it is: CVE-2025-1385 is a high-severity code injection vulnerability in ClickHouse OSS, published on 20 Mar 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-1385 in the wild and no public exploit code.

Affected product: ClickHouse OSS. 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-2025-1385/ (Markdown: https://insights.sbomify.com/CVE-2025-1385/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-1385
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-1385
- OSV: https://osv.dev/vulnerability/CVE-2025-1385

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-1385/
Summaries are generated and may contain mistakes; the official description above is the record.