CVE-2026-89509: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-p644-p7x2-xc3f
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Advisory Summary

CVE-2026-89509 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-2026-89509 at a Glance

CVE Identifier CVE-2026-89509
GHSA Identifier GHSA-p644-p7x2-xc3f
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-2026-89509

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-2026-89509, 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: RDMA/ionic: Embed counter driver data in rdma_counter allocation Commit 7e53b31acc7f ("RDMA/core: Create and destroy rdma_counter using rdma_zalloc_drv_obj()") requires drivers implementing counter ops to embed struct rdma_counter in a driver-specific struct, register its size via INIT_RDMA_OBJ_SIZE, and provide a counter_init callback. The ionic driver was merged without this adaptation, causing a NULL pointer dereference in alloc_and_bind() since rdma_zalloc_drv_obj() allocates zero bytes when size_rdma_counter is unset. Consolidate struct ionic_counter into a new struct ionic_rdma_counter that embeds struct rdma_counter, replace the xarray with a lightweight ida for ID allocation, and add the required counter_init and INIT_RDMA_OBJ_SIZE declarations.

References

NVD — CVE-2026-89509 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89509
git.kernel.org/stable/c/08b8630b55... WEB
https://git.kernel.org/stable/c/08b8630b557828aedb1d9ef0a6e2ec421f334ee2
git.kernel.org/stable/c/c98197ee3c... WEB
https://git.kernel.org/stable/c/c98197ee3cd28288da13dc9881bb9e74daa7cbbc
git.kernel.org/stable/c/cf3ebd89e7... WEB
https://git.kernel.org/stable/c/cf3ebd89e754015625fee90aa938f6bc79a2c974

Frequently Asked Questions

What is CVE-2026-89509?
CVE-2026-89509 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-2026-89509?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89509?
CVE-2026-89509 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89509?
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 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-p644-p7x2-xc3f",
  "modified" : "2026-09-11T21:31:30Z",
  "published" : "2026-09-11T21:31:30Z",
  "aliases" : [ "CVE-2026-89509" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/ionic: Embed counter driver data in rdma_counter allocation\n\nCommit 7e53b31acc7f (\"RDMA/core: Create and destroy rdma_counter using\nrdma_zalloc_drv_obj()\") requires drivers implementing counter ops to\nembed struct rdma_counter in a driver-specific struct, register its size\nvia INIT_RDMA_OBJ_SIZE, and provide a counter_init callback.\n\nThe ionic driver was merged without this adaptation, causing a NULL\npointer dereference in alloc_and_bind() since rdma_zalloc_drv_obj()\nallocates zero bytes when size_rdma_counter is unset.\n\nConsolidate struct ionic_counter into a new struct ionic_rdma_counter\nthat embeds struct rdma_counter, replace the xarray with a lightweight\nida for ID allocation, and add the required counter_init and\nINIT_RDMA_OBJ_SIZE declarations.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89509"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/08b8630b557828aedb1d9ef0a6e2ec421f334ee2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c98197ee3cd28288da13dc9881bb9e74daa7cbbc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cf3ebd89e754015625fee90aa938f6bc79a2c974"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:33Z"
  }
}