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CRITICAL severity

CVE-2022-28890 — jena

CRITICAL

CVE-2022-28890 is a critical-severity (CVSS 9.8) XML External Entity (XXE) vulnerability in org.apache.jena:jena. A fix is available for org.apache.jena:jena — see the affected versions and patch details below.

XML External Entity Reference in apache jena

Also known asGHSA-gchv-364h-r896
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs86th percentile — riskier than 86% of all scored CVEsHighest risk
0.00%1.11%2.21%3.32%0.5%2.7%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
☕org.apache.jena:jena

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

A vulnerability in the RDF/XML parser of Apache Jena allows an attacker to cause an external DTD to be retrieved. This issue affects Apache Jena version 4.4.0 and prior versions. Apache Jena 4.2.x and 4.3.x do not allow external entities.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.jena:jena≥ 4.4.0&&< 4.5.04.5.0org.apache.jena:jena:4.5.0

Affected Products

1 product · 1 configurations
Application
jenaapache
1 version
4.4.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update org.apache.jena:jena to 4.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-28890 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

A vulnerability in the RDF/XML parser of Apache Jena allows an attacker to cause an external DTD to be retrieved. This issue affects Apache Jena version 4.4.0 and prior versions. Apache Jena 4.2.x and 4.3.x do not allow external entities.
O3 Security · Impact-Aware SCA

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CVE-2022-28890: jena — Fixed in 4.5.0