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CRITICAL severity

Liferay Portal Allows RCE via Deserialization of a JSON PayloadGHSA-372h-p48h-xw8q

CRITICAL

GHSA-372h-p48h-xw8q is a critical-severity (CVSS 9.8) Deserialization of Untrusted Data vulnerability in com.liferay.portal:release.portal.bom. 3 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for com.liferay.portal:release.portal.bom — see the affected versions and patch details below.

Also known asCVE-2019-16891
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
3 known
Exploitation data as of Nov 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
44.7%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
34.3%52.9%71.4%90.0%79.6%44.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕com.liferay.portal:release.portal.bom

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Liferay Portal CE 7.1.0 and earlier allows remote command execution because of deserialization of a JSON payload.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavencom.liferay.portal:release.portal.bomall versions7.1.1com.liferay.portal:release.portal.bom:7.1.1

Affected Products

1 product · 75 configurations
Application
liferay portalliferay
≤ 6.0.6
21 versions
6.1.06.1.16.1.26.2.06.2.16.2.26.2.36.2.46.2.57.0.07.0.17.0.2
Exploits & PoCs
3

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Liferay Portal CE 6.2.5 allows remote command execution because of deser…

sec.vnpt.vnNVDOct 2019

Report on youtube.com

youtube.comNVDFeb 2023

Report on dappsec.substack.com

dappsec.substack.comNVDFeb 2023

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.liferay.portal:release.portal.bom, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update com.liferay.portal:release.portal.bom to 7.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-372h-p48h-xw8q is resolved across your whole dependency graph.

  3. Workarounds

    Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Frequently Asked Questions

Liferay Portal CE 7.1.0 and earlier allows remote command execution because of deserialization of a JSON payload.
O3 Security · Impact-Aware SCA

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