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Maven
Not in CISA KEV
HIGH severity

GHSA-7f88-5hhx-67m2 xnio-api

HIGHFix: xnio/xnio@ffabdcd

GHSA-7f88-5hhx-67m2 is a high-severity (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in org.jboss.xnio:xnio-api. A fix is available for org.jboss.xnio:xnio-api — see the affected versions and patch details below.

XNIO denial of service vulnerability

Also known asCVE-2023-5685
Published
Mar 22, 2024
Updated
Sep 10, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 19, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-7f88-5hhx-67m2.

EPSS Exploitation Probability

via FIRST.org ↗
3.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs89th percentile — riskier than 89% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-7f88-5hhx-67m2 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 377,166 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
org.jboss.xnio:xnio-api

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 flaw was found in XNIO. The XNIO NotifierState that can cause a Stack Overflow Exception when the chain of notifier states becomes problematically large can lead to uncontrolled resource management and a possible denial of service (DoS). Version 3.8.14.Final is expected to contain a fix.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.jboss.xnio:xnio-apiall versions3.8.14.Finalorg.jboss.xnio:xnio-api:3.8.14.Final

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.jboss.xnio:xnio-api, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.jboss.xnio:xnio-api to 3.8.14.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7f88-5hhx-67m2 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.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-7f88-5hhx-67m2 can be triaged on real exposure rather than presence alone.

Tailored to GHSA-7f88-5hhx-67m2. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

Red Hat rates this vulnerability as an Important impact as the uncontrolled resource consumption may lead to Denial of Service (DoS). This might be intentioned by an attacker who is looking to jeopardize an environment.

ProductFixed inAdvisory
Red Hat build of Apache Camel 4.4.0 for Spring BootxnioRHSA-2024:2707
Red Hat JBoss Enterprise Application Platformorg.jboss.xnio/xnio-nio:3.8.11.SP1-redhat-00001RHSA-2023:7641
Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7eap7-apache-cxf-0:3.1.16-3.SP1_redhat_00001.1.ep7.el7RHSA-2024:10208
Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7eap7-apache-cxf-0:3.4.10-1.SP1_redhat_00001.1.el7eapRHSA-2024:10207
Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8eap7-jboss-xnio-base-0:3.8.11-1.SP1_redhat_00001.1.el8eapRHSA-2023:7638
Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9eap7-jboss-xnio-base-0:3.8.11-1.SP1_redhat_00001.1.el9eapRHSA-2023:7639
Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7eap7-jboss-xnio-base-0:3.8.11-1.SP1_redhat_00001.1.el7eapRHSA-2023:7637

Frequently Asked Questions

A flaw was found in XNIO. The XNIO NotifierState that can cause a Stack Overflow Exception when the chain of notifier states becomes problematically large can lead to uncontrolled resource management and a possible denial of service (DoS). Version 3.8.14.Final is expected to contain a fix.
O3 Security · Impact-Aware SCA

Is GHSA-7f88-5hhx-67m2 in your dependencies?

O3 Security finds GHSA-7f88-5hhx-67m2 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-7f88-5hhx-67m2: xnio-api (High 7.5) | O3 Security