CVE-2026-98012: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-wq2r-f96j-67j9
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Advisory Summary

CVE-2026-98012 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-2026-98012 at a Glance

CVE Identifier CVE-2026-98012
GHSA Identifier GHSA-wq2r-f96j-67j9
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-2026-98012

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-2026-98012, 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: net/sched: sfq: clamp quantum in change path sfq_change() accepts any non-negative quantum (only rejects (int)ctl->quantum < 0). With a crafted size table qdisc_pkt_len reaches ~2 GiB, so quantum=1 makes the deficit-refill loop spin ~2^31 times under the qdisc lock (a soft lockup / denial of service). Add max(256U, ...) matching fq_codel_change(). Reject quantum > 1<<20 with -EINVAL, matching fq_codel_change() and the init clamp. Conditions to recreate the bug: CONFIG_NET_SCH_SFQ=y. Requires CAP_NET_ADMIN (namespace-local via unshare -Urn suffices). tc qdisc add dev dummy0 root sfq tc qdisc change dev dummy0 root sfq quantum 1 stab data 32768 size_log 15 cell_log 0

References

NVD — CVE-2026-98012 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98012
git.kernel.org/stable/c/0692ce5a52... WEB
https://git.kernel.org/stable/c/0692ce5a528df450d64e9f819054177e9d91076f
git.kernel.org/stable/c/4117c528b2... WEB
https://git.kernel.org/stable/c/4117c528b2de5fdc3e4a7e3626815b616a635cdc
git.kernel.org/stable/c/534cd7ecbb... WEB
https://git.kernel.org/stable/c/534cd7ecbbc6e8a974f4003a5c1557439c6e0a72
git.kernel.org/stable/c/e4192bcf83... WEB
https://git.kernel.org/stable/c/e4192bcf83aaab02129644ddf4656fd86e93751f
git.kernel.org/stable/c/e6c1cb728e... WEB
https://git.kernel.org/stable/c/e6c1cb728e389354203a72bc77464c222a247aeb
git.kernel.org/stable/c/f3820dce04... WEB
https://git.kernel.org/stable/c/f3820dce042a673fcb28cc31c87ee14257e21a17
git.kernel.org/stable/c/f82fa6f10d... WEB
https://git.kernel.org/stable/c/f82fa6f10d4a69322cad0f7a4aa523ce6292a5a0
git.kernel.org/stable/c/fb9f88a33c... WEB
https://git.kernel.org/stable/c/fb9f88a33c516ea5c0bcd9a22ca288b246b34567

Frequently Asked Questions

What is CVE-2026-98012?
CVE-2026-98012 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-2026-98012?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98012?
CVE-2026-98012 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98012?
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-wq2r-f96j-67j9",
  "modified" : "2026-10-03T12:31:24Z",
  "published" : "2026-09-25T12:31:32Z",
  "aliases" : [ "CVE-2026-98012" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: sfq: clamp quantum in change path\n\nsfq_change() accepts any non-negative quantum (only rejects\n(int)ctl->quantum < 0). With a crafted size table qdisc_pkt_len reaches\n~2 GiB, so quantum=1 makes the deficit-refill loop spin ~2^31 times\nunder the qdisc lock (a soft lockup / denial of service).\n\nAdd max(256U, ...) matching fq_codel_change(). Reject quantum > 1<<20\nwith -EINVAL, matching fq_codel_change() and the init clamp.\n\nConditions to recreate the bug:\n  CONFIG_NET_SCH_SFQ=y. Requires CAP_NET_ADMIN (namespace-local via\n  unshare -Urn suffices).\n\n  tc qdisc add dev dummy0 root sfq\n  tc qdisc change dev dummy0 root sfq quantum 1 stab data 32768 size_log 15 cell_log 0",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98012"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0692ce5a528df450d64e9f819054177e9d91076f"
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    "type" : "WEB",
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:29Z"
  }
}