# CVE-2024-42323: Apache HertzBeat: RCE by snakeYaml deser load malicious xml

> Authorized attackers can achieve remote code execution in Apache HertzBeat via unsafe SnakeYAML deserialization of malicious XML.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 21 Sep 2024
- **Updated:** 23 Sep 2024
- **Also known as:** GHSA-8qj3-h82r-hcwc

## What is CVE-2024-42323?

CVE-2024-42323 is a high-severity unsafe deserialization vulnerability in Apache HertzBeat, published on 21 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

SnakeYaml Deser Load Malicious xml rce vulnerability in Apache HertzBeat (incubating). 

This vulnerability can only be exploited by authorized attackers.
This issue affects Apache HertzBeat (incubating): before 1.6.0.

Users are recommended to upgrade to version 1.6.0, which fixes the issue.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2024-42323?

It affects 1 product.


Products: Apache Hertzbeat.

## How do I fix CVE-2024-42323?

No fix has been published for CVE-2024-42323 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-42323 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42323 exists.

Public exploit code:

- https://github.com/forwjm/CVE-2024-42323 (github_poc): https://github.com/forwjm/CVE-2024-42323
- Apache HertzBeat < 1.6.0 - SnakeYAML Deserialization Remote Code Execution (nuclei): http/cves/2024/CVE-2024-42323.yaml

## Other vulnerabilities in Apache HertzBeat

- [CVE-2023-51388](https://insights.sbomify.com/CVE-2023-51388/): HertzBeat AviatorScript Inject RCE (critical 9.8)
- [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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-42323 and fix it if it is affected.

What it is: CVE-2024-42323 is a high-severity unsafe deserialization vulnerability in Apache HertzBeat, published on 21 Sep 2024. 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-2024-42323 exists.

Affected product: Apache 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-2024-42323/ (Markdown: https://insights.sbomify.com/CVE-2024-42323/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-42323
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-42323
- OSV: https://osv.dev/vulnerability/CVE-2024-42323

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-42323/
Summaries are generated and may contain mistakes; the official description above is the record.