How severe is GHSA-h3j8-fr5q-8rfr?

No CVSS score has been assigned to GHSA-h3j8-fr5q-8rfr yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-h3j8-fr5q-8rfr?

GHSA-h3j8-fr5q-8rfr affects the following packages: com.jfinal:jfinal (Maven). Ecosystems affected: Maven.

How do I fix GHSA-h3j8-fr5q-8rfr?

The records we use list no patched version of com.jfinal:jfinal for GHSA-h3j8-fr5q-8rfr. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

How do I detect GHSA-h3j8-fr5q-8rfr in my Maven dependencies?

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

How do I mitigate GHSA-h3j8-fr5q-8rfr if there is no patch (or I can't update yet)?

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.

Is GHSA-h3j8-fr5q-8rfr actively exploited in the wild?

Yes. There are 2 known exploit references for GHSA-h3j8-fr5q-8rfr, including 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-h3j8-fr5q-8rfr?

GHSA-h3j8-fr5q-8rfr has an EPSS (Exploit Prediction Scoring System) score of 1.8%, placing it in the 79th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-h3j8-fr5q-8rfr?

GHSA-h3j8-fr5q-8rfr is classified as Deserialization of Untrusted Data (CWE-502). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was GHSA-h3j8-fr5q-8rfr published, and has it been updated?

GHSA-h3j8-fr5q-8rfr was published on May 24, 2022 and was last updated on December 7, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕ Maven

Not in CISA KEV

JFinal Java Deserialization VulnerabilityGHSA-h3j8-fr5q-8rfr

GHSA-h3j8-fr5q-8rfr is a Deserialization of Untrusted Data vulnerability in com.jfinal:jfinal. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Also known asCVE-2021-31649

Published

May 24, 2022

Updated

Dec 7, 2024

Affected

1 pkg

Patched

See advisory

Exploits

2 known

Exploitation data as of Nov 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.8%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs79th percentile — riskier than 79% of all scored CVEsHighest risk

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

Real-World Exposure

1 pkg affected

☕com.jfinal:jfinal

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

In applications using jfinal 4.9.08 and below, there is a deserialization vulnerability when using redis,may be vulnerable to remote code execute

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`com.jfinal:jfinal`	all versions	No fix

Affected Products

1 product · 1 configurations

Application

jfinaljfinal

≤ 4.9.08

range

Exploits & PoCs

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

In applications using jfinal 4.9.08 and below, there is a deserializatio…

note.youdao.comNVDJul 2021

Report on note.youdao.com

note.youdao.comNVDJul 2021

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.jfinal:jfinal, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of com.jfinal:jfinal for GHSA-h3j8-fr5q-8rfr. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
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

In applications using jfinal 4.9.08 and below, there is a deserialization vulnerability when using redis which can lead to remote code execution

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