CVE-2026-64591: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-xvw3-8q2r-r787
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Advisory Summary

CVE-2026-64591 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-2026-64591 at a Glance

CVE Identifier CVE-2026-64591
GHSA Identifier GHSA-xvw3-8q2r-r787
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-2026-64591

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-2026-64591, 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: iommu/vt-d: Avoid WARNING in sva unbind path The Intel IOMMU driver allows SVA on devices even if they do not support PCI/PRI. Commit 39c20c4e83b9 ("iommu/vt-d: Only handle IOPF for SVA when PRI is supported") modified the SVA bind path to allow this configuration by skipping IOPF enablement when PRI is missing. However, it failed to update the unbind path. This creates an imbalance: the unbind path attempts to disable IOPF for a device that never had it enabled, triggering a WARNING in intel_iommu_disable_iopf(): WARNING: drivers/iommu/intel/iommu.c:3475 at intel_iommu_disable_iopf+0x4f/0x90d Call Trace: <TASK> blocking_domain_set_dev_pasid+0x50/0x70 iommu_detach_device_pasid+0x89/0xc0 iommu_sva_unbind_device+0x73/0x150 xe_vm_close_and_put+0x4d2/0x1200 [xe] Fix this by bypassing IOPF operations for SVA domains on non-PRI hardware in both the bind and unbind paths.

References

NVD — CVE-2026-64591 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64591
git.kernel.org/stable/c/477f8dec3b... WEB
https://git.kernel.org/stable/c/477f8dec3b5ae54e8ef3c33bdd2257e47896512e
git.kernel.org/stable/c/534b5f98ab... WEB
https://git.kernel.org/stable/c/534b5f98ab7319d8004bbc7dab6481462243e883
git.kernel.org/stable/c/bb354384f4... WEB
https://git.kernel.org/stable/c/bb354384f40bb087e7c44f0f0743a23fc945f91d

Frequently Asked Questions

What is CVE-2026-64591?
CVE-2026-64591 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-2026-64591?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-64591?
CVE-2026-64591 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-64591?
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-xvw3-8q2r-r787",
  "modified" : "2026-08-06T09:30:32Z",
  "published" : "2026-08-06T09:30:32Z",
  "aliases" : [ "CVE-2026-64591" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Avoid WARNING in sva unbind path\n\nThe Intel IOMMU driver allows SVA on devices even if they do not support\nPCI/PRI. Commit 39c20c4e83b9 (\"iommu/vt-d: Only handle IOPF for SVA when\nPRI is supported\") modified the SVA bind path to allow this configuration\nby skipping IOPF enablement when PRI is missing. However, it failed to\nupdate the unbind path.\n\nThis creates an imbalance: the unbind path attempts to disable IOPF for\na device that never had it enabled, triggering a WARNING in\nintel_iommu_disable_iopf():\n\n WARNING: drivers/iommu/intel/iommu.c:3475 at intel_iommu_disable_iopf+0x4f/0x90d\n Call Trace:\n  <TASK>\n  blocking_domain_set_dev_pasid+0x50/0x70\n  iommu_detach_device_pasid+0x89/0xc0\n  iommu_sva_unbind_device+0x73/0x150\n  xe_vm_close_and_put+0x4d2/0x1200 [xe]\n\nFix this by bypassing IOPF operations for SVA domains on non-PRI hardware\nin both the bind and unbind paths.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64591"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/477f8dec3b5ae54e8ef3c33bdd2257e47896512e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/534b5f98ab7319d8004bbc7dab6481462243e883"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bb354384f40bb087e7c44f0f0743a23fc945f91d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-06T08:16:34Z"
  }
}