CVE-2026-93078: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-ww8v-32xc-j2p4
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Advisory Summary

CVE-2026-93078 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-2026-93078 at a Glance

CVE Identifier CVE-2026-93078
GHSA Identifier GHSA-ww8v-32xc-j2p4
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-2026-93078

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-2026-93078, 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: cxl/features: Reject Set Features output buffer smaller than the header cxlctl_set_feature() sizes its output buffer from the user's fwctl_rpc.out_len but never checks it is large enough to hold even the fwctl_rpc_cxl_out header. With out_len == 0 , kvzalloc() returns ZERO_SIZE_PTR, which passes the !rpc_out check, the subsequent rpc_out->size = 0 then writes through the poison pointer. Reject requests whose output buffer can't hold the response header, before allocating. The Set Feature reply carries no payload, so the header is all that is required.

References

NVD — CVE-2026-93078 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93078
git.kernel.org/stable/c/1281dc84c8... WEB
https://git.kernel.org/stable/c/1281dc84c81577b51e2b61c24617c9f44b2cdb99
git.kernel.org/stable/c/16b7c99eff... WEB
https://git.kernel.org/stable/c/16b7c99eff030c6ea11ca24efa4b9f989cc74093
git.kernel.org/stable/c/cde18d6c1d... WEB
https://git.kernel.org/stable/c/cde18d6c1d913a67ab0afd3d9475ece4be79da50

Frequently Asked Questions

What is CVE-2026-93078?
CVE-2026-93078 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-2026-93078?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-93078?
CVE-2026-93078 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93078?
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-ww8v-32xc-j2p4",
  "modified" : "2026-09-17T18:32:09Z",
  "published" : "2026-09-17T18:32:09Z",
  "aliases" : [ "CVE-2026-93078" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/features: Reject Set Features output buffer smaller than the header\n\ncxlctl_set_feature() sizes its output buffer from the user's\nfwctl_rpc.out_len but never checks it is large enough to hold even the\nfwctl_rpc_cxl_out header. With out_len == 0 , kvzalloc() returns\nZERO_SIZE_PTR, which passes the !rpc_out check, the subsequent\nrpc_out->size = 0 then writes through the poison pointer.\n\nReject requests whose output buffer can't hold the response header,\nbefore allocating. The Set Feature reply carries no payload, so the\nheader is all that is required.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93078"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1281dc84c81577b51e2b61c24617c9f44b2cdb99"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/16b7c99eff030c6ea11ca24efa4b9f989cc74093"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cde18d6c1d913a67ab0afd3d9475ece4be79da50"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:18:01Z"
  }
}