CVE-2026-98622: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-qg6m-cv4g-hx6q
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Advisory Summary

CVE-2026-98622 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-2026-98622 at a Glance

CVE Identifier CVE-2026-98622
GHSA Identifier GHSA-qg6m-cv4g-hx6q
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-2026-98622

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-2026-98622, 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: act_ct: don't WARN on benign flow_offload_alloc() failure flow_offload_alloc() returns NULL when the conntrack entry is dying (e.g. raced with a conntrack flush) or when the GFP_ATOMIC allocation fails; both are expected under load and neither is a kernel bug. This path runs from softirq on every committed packet, so with panic_on_warn=1 an unprivileged user can panic the box just by racing a conntrack flush against a `tc ... action ct commit` classifier. Reproduced with a custom repro under QEMU: a small, fixed set of UDP flows through `tc filter ... action ct commit` on lo, raced against threads flooding bare ctnetlink CT_DELETE (flush) requests. Hits WARNING: net/sched/act_ct.c:437 (tcf_ct_flow_table_add(), inlined into tcf_ct_act() in this build) within ~15s on the unpatched kernel; same setup is clean on the patched kernel. The fix itself is behavior-preserving: both branches already did `goto err_alloc` before and after, only the WARN is removed.

References

NVD — CVE-2026-98622 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98622
git.kernel.org/stable/c/00734f3684... WEB
https://git.kernel.org/stable/c/00734f3684fcec42c319bedfe68a5d357c720b53
git.kernel.org/stable/c/424ba52c00... WEB
https://git.kernel.org/stable/c/424ba52c0058deeb940d02cba52eb0aeb288db33
git.kernel.org/stable/c/47abe7a5c4... WEB
https://git.kernel.org/stable/c/47abe7a5c4eb53269aca3506446f851572a059a3
git.kernel.org/stable/c/650787233c... WEB
https://git.kernel.org/stable/c/650787233c2fd6e515a7c5f371019a9fa080ccd2
git.kernel.org/stable/c/af475f5992... WEB
https://git.kernel.org/stable/c/af475f599270e59313552e6c6f3af8507da672b8
git.kernel.org/stable/c/d512c484bd... WEB
https://git.kernel.org/stable/c/d512c484bd93a5f2794aa03c9faeb7bcb82dbd4a
git.kernel.org/stable/c/d805560ad6... WEB
https://git.kernel.org/stable/c/d805560ad69cb266d669341ca01e26bffb0d2c67
git.kernel.org/stable/c/e8fcf3f088... WEB
https://git.kernel.org/stable/c/e8fcf3f08834e939b797311742ee72b1e2a08096

Frequently Asked Questions

What is CVE-2026-98622?
CVE-2026-98622 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-2026-98622?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98622?
CVE-2026-98622 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98622?
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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  "id" : "GHSA-qg6m-cv4g-hx6q",
  "modified" : "2026-10-18T18:31:57Z",
  "published" : "2026-10-18T18:31:56Z",
  "aliases" : [ "CVE-2026-98622" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_ct: don't WARN on benign flow_offload_alloc() failure\n\nflow_offload_alloc() returns NULL when the conntrack entry is dying\n(e.g. raced with a conntrack flush) or when the GFP_ATOMIC allocation\nfails; both are expected under load and neither is a kernel bug. This\npath runs from softirq on every committed packet, so with\npanic_on_warn=1 an unprivileged user can panic the box just by racing\na conntrack flush against a `tc ... action ct commit` classifier.\n\nReproduced with a custom repro under QEMU: a small, fixed set of UDP\nflows through `tc filter ... action ct commit` on lo, raced against\nthreads flooding bare ctnetlink CT_DELETE (flush) requests. Hits\nWARNING: net/sched/act_ct.c:437 (tcf_ct_flow_table_add(), inlined\ninto tcf_ct_act() in this build) within ~15s on the unpatched kernel;\nsame setup is clean on the patched kernel. The fix itself is\nbehavior-preserving: both branches already did `goto err_alloc`\nbefore and after, only the WARN is removed.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98622"
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    "url" : "https://git.kernel.org/stable/c/00734f3684fcec42c319bedfe68a5d357c720b53"
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    "url" : "https://git.kernel.org/stable/c/424ba52c0058deeb940d02cba52eb0aeb288db33"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:15Z"
  }
}