# CVE-2018-19276: Deserialization in n/a

> Unauthenticated attackers can execute arbitrary commands on OpenMRS systems by sending crafted XML data due to insecure object deserialization.

- **Severity:** Critical 10.0 (`CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Mar 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-785q-xwp9-2xw7

## What is CVE-2018-19276?

CVE-2018-19276 is a critical unsafe deserialization vulnerability in n/a, published on 17 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

OpenMRS before 2.24.0 is affected by an Insecure Object Deserialization vulnerability that allows an unauthenticated user to execute arbitrary commands on the targeted system via crafted XML data in a request body.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2018-19276?

It affects 1 product.


Products: Openmrs Openmrs.

## How do I fix CVE-2018-19276?

No fix has been published for CVE-2018-19276 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-19276 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-19276 exists.

Public exploit code:

- CVE-2018-19276 - OpenMRS Insecure Object Deserialization RCE (github_poc): https://github.com/mpgn/CVE-2018-19276
- OpenMRS Java Deserialization RCE (metasploit)
- OpenMRS Platform < 2.24.0 - Insecure Object Deserialization (exploitdb)
- OpenMRS - Java Deserialization RCE (Metasploit) (exploitdb)
- OpenMRS Platform < 2.24.0 - Insecure Object Deserialization (nuclei): http/cves/2018/CVE-2018-19276.yaml

## Other vulnerabilities in n/a

- [CVE-2021-43094](https://insights.sbomify.com/CVE-2021-43094/): SQL injection in n/a (critical 9.8)
- [CVE-2017-12796](https://insights.sbomify.com/CVE-2017-12796/): Deserialization in n/a (critical 9.8)
- [CVE-2026-40076](https://insights.sbomify.com/CVE-2026-40076/): OpenMRS Core arbitrary file write and code execution via Zip Slip in module upload (critical 9.4)
- [CVE-2026-40075](https://insights.sbomify.com/CVE-2026-40075/): OpenMRS Core arbitrary file read via path traversal in ModuleResourcesServlet (high 8.2)
- [CVE-2025-25928](https://insights.sbomify.com/CVE-2025-25928/): Cross-site request forgery in n/a (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-19276 and fix it if it is affected.

What it is: CVE-2018-19276 is a critical unsafe deserialization vulnerability in n/a, published on 17 Mar 2019. 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-2018-19276 exists.

Affected product: n/a. 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-2018-19276/ (Markdown: https://insights.sbomify.com/CVE-2018-19276/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-19276
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-19276
- OSV: https://osv.dev/vulnerability/CVE-2018-19276

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-19276/
Summaries are generated and may contain mistakes; the official description above is the record.