CVE-2026-98347: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-8j4r-887v-cjjx
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Advisory Summary

CVE-2026-98347 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98347 at a Glance

CVE Identifier CVE-2026-98347
GHSA Identifier GHSA-8j4r-887v-cjjx
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-98347

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-98347, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: IB/IPoIB: Avoid restoring OPER_UP after multicast flush ipoib_ib_dev_flush_light() temporarily clears IPOIB_FLAG_OPER_UP to prevent multicast joins while ipoib_mcast_dev_flush() is running, and restores the flag afterwards if it was previously set. This restore races with ipoib_ib_dev_down(). If the interface is brought down while the flush is in progress, ipoib_ib_dev_down() clears IPOIB_FLAG_OPER_UP, but the flush path may set it again after the device has already gone down. Since commit 894021a75291 ("IB/ipoib: Make the carrier_on_task race aware"), ipoib_mcast_carrier_on_task() relies on IPOIB_FLAG_OPER_UP being cleared to terminate its rtnl_trylock() retry loop. If the flag is left set after shutdown, the workqueue retries forever, causing teardown to deadlock when ipoib_ndo_uninit() waits in destroy_workqueue() while holding RTNL. Instead of overloading IPOIB_FLAG_OPER_UP to block multicast joins during a light flush, introduce a dedicated IPOIB_FLAG_MCAST_FLUSH flag. Use it together with IPOIB_FLAG_OPER_UP to determine whether multicast joins are allowed, avoiding the race with device shutdown.

References

NVD — CVE-2026-98347 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98347
git.kernel.org/stable/c/188b334a6d... WEB
https://git.kernel.org/stable/c/188b334a6db36a8e0bfaaf59bc4020639a0f3aad
git.kernel.org/stable/c/1b11e4b55b... WEB
https://git.kernel.org/stable/c/1b11e4b55b41d9e69a8e8d07622614202e2eaca9
git.kernel.org/stable/c/1ff3add37c... WEB
https://git.kernel.org/stable/c/1ff3add37c329704ec46181b4ae4f00f9f16ce6f
git.kernel.org/stable/c/326f7d34bd... WEB
https://git.kernel.org/stable/c/326f7d34bd7e64de535566b65c0533b640df5a81
git.kernel.org/stable/c/5ad925d45f... WEB
https://git.kernel.org/stable/c/5ad925d45f28464a5e043c9620880bb6a030da89
git.kernel.org/stable/c/9a141d3dc8... WEB
https://git.kernel.org/stable/c/9a141d3dc869d18b2eab35e999f4790a9b84e40f
git.kernel.org/stable/c/b72f38929f... WEB
https://git.kernel.org/stable/c/b72f38929f4b5aa83161fd3b22a7327207e51ec5
git.kernel.org/stable/c/f973769fb7... WEB
https://git.kernel.org/stable/c/f973769fb7cb33ba0d4a64b7dcfee0cabaead938

Frequently Asked Questions

What is CVE-2026-98347?
CVE-2026-98347 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-98347?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98347?
CVE-2026-98347 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98347?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-8j4r-887v-cjjx",
  "modified" : "2026-10-06T09:31:36Z",
  "published" : "2026-10-06T09:31:36Z",
  "aliases" : [ "CVE-2026-98347" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/IPoIB: Avoid restoring OPER_UP after multicast flush\n\nipoib_ib_dev_flush_light() temporarily clears IPOIB_FLAG_OPER_UP to\nprevent multicast joins while ipoib_mcast_dev_flush() is running, and\nrestores the flag afterwards if it was previously set.\n\nThis restore races with ipoib_ib_dev_down(). If the interface is brought\ndown while the flush is in progress, ipoib_ib_dev_down() clears\nIPOIB_FLAG_OPER_UP, but the flush path may set it again after the device\nhas already gone down.\n\nSince commit 894021a75291 (\"IB/ipoib: Make the carrier_on_task race\naware\"), ipoib_mcast_carrier_on_task() relies on IPOIB_FLAG_OPER_UP\nbeing cleared to terminate its rtnl_trylock() retry loop. If the flag is\nleft set after shutdown, the workqueue retries forever, causing teardown\nto deadlock when ipoib_ndo_uninit() waits in destroy_workqueue() while\nholding RTNL.\n\nInstead of overloading IPOIB_FLAG_OPER_UP to block multicast joins\nduring a light flush, introduce a dedicated IPOIB_FLAG_MCAST_FLUSH flag.\nUse it together with IPOIB_FLAG_OPER_UP to determine whether multicast\njoins are allowed, avoiding the race with device shutdown.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98347"
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    "url" : "https://git.kernel.org/stable/c/188b334a6db36a8e0bfaaf59bc4020639a0f3aad"
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    "url" : "https://git.kernel.org/stable/c/f973769fb7cb33ba0d4a64b7dcfee0cabaead938"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-06T09:18:27Z"
  }
}