# CVE-2023-51388: HertzBeat AviatorScript Inject RCE

> Attackers can execute arbitrary code via AviatorScript injection in HertzBeat due to missing security policies in the alarm calculation module.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Feb 2024
- **Updated:** 14 Aug 2024
- **Also known as:** GHSA-mcqg-gqxr-hqgj

## What is CVE-2023-51388?

CVE-2023-51388 is a critical code injection vulnerability in dromara hertzbeat, published on 22 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Hertzbeat is a real-time monitoring system. In `CalculateAlarm.java`, `AviatorEvaluator` is used to directly execute the expression function, and no security policy is configured, resulting in AviatorScript (which can execute any static method by default) script injection. Version 1.4.1 fixes this vulnerability.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2023-51388?

It affects 1 product.


Products: Apache Hertzbeat.

## How do I fix CVE-2023-51388?

No fix has been published for CVE-2023-51388 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-51388 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-51388 exists.

## Other vulnerabilities in dromara hertzbeat

- [CVE-2023-51389](https://insights.sbomify.com/CVE-2023-51389/): HertzBeat SnakeYAML Deser RCE (critical 9.8)
- [CVE-2023-51653](https://insights.sbomify.com/CVE-2023-51653/): Hertzbeat JMX JNDI RCE (critical 9.8)
- [CVE-2026-24343](https://insights.sbomify.com/CVE-2026-24343/): Apache HertzBeat: Uncontrolled Resource Consumption via Crafted XPath Expressions (high 8.8)
- [CVE-2025-24404](https://insights.sbomify.com/CVE-2025-24404/): Apache HertzBeat (incubating): RCE by parse http sitemap xml response (high 8.8)
- [CVE-2025-48208](https://insights.sbomify.com/CVE-2025-48208/): Apache HertzBeat (incubating): Jmx JNDI injection vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-51388 and fix it if it is affected.

What it is: CVE-2023-51388 is a critical code injection vulnerability in dromara hertzbeat, published on 22 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-51388 exists.

Affected product: dromara hertzbeat. 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-2023-51388/ (Markdown: https://insights.sbomify.com/CVE-2023-51388/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-51388
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-51388
- OSV: https://osv.dev/vulnerability/CVE-2023-51388

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-51388/
Summaries are generated and may contain mistakes; the official description above is the record.