CVE-2026-64106: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-gf7v-gpf5-6fgc
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CVSS 9.0
CWE-20
Published
Advisory Summary

CVE-2026-64106 is a CRITICAL (CVSS 9.0) security vulnerability vulnerability (CWE-20: Improper Input Validation) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64106 at a Glance

CVE Identifier CVE-2026-64106
GHSA Identifier GHSA-gf7v-gpf5-6fgc
Severity CRITICAL
CVSS v3.1 Base Score 9.0
CWE Classification CWE-20: Improper Input Validation
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-64106

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-2026-64106, 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 CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. 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: KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that state, but vgic_its_restore_dte() accepts it and stores the out-of-range value in dev->num_eventid_bits. Reject restored DTEs with num_eventid_bits > VITS_TYPER_IDBITS before allocating the device. This mirrors the MAPD check and prevents the restored state from reaching vgic_its_restore_itt(), where the unchecked value can be converted into an oversized scan_its_table() range.

References

NVD — CVE-2026-64106 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64106
git.kernel.org/stable/c/0680f51192... WEB
https://git.kernel.org/stable/c/0680f511926589206f81f57f76ce131d7741a316
git.kernel.org/stable/c/1716b7fea2... WEB
https://git.kernel.org/stable/c/1716b7fea2ead941a0dfac06c4504a3437cdf00d
git.kernel.org/stable/c/8bcd15b690... WEB
https://git.kernel.org/stable/c/8bcd15b690a390241179516af1b6ae49ebfd9d95
git.kernel.org/stable/c/9ce754ed8e... WEB
https://git.kernel.org/stable/c/9ce754ed8e7ab4e3999767ce1505f85c449ccb07
git.kernel.org/stable/c/b94538186a... WEB
https://git.kernel.org/stable/c/b94538186a3eae3763b8f96dacd610920a865aa7
git.kernel.org/stable/c/dab9f93251... WEB
https://git.kernel.org/stable/c/dab9f93251b2c86a033de6098d0c73afddd55d4a

Frequently Asked Questions

What is CVE-2026-64106?
CVE-2026-64106 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-20: Improper Input Validation.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64106?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64106?
CVE-2026-64106 has a CVSS v3.1 base score of 9.0 (CRITICAL) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H.
What CWE is associated with CVE-2026-64106?
CVE-2026-64106 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Maven dependencies for CVE-2026-64106?
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-gf7v-gpf5-6fgc",
  "modified" : "2026-07-20T15:31:59Z",
  "published" : "2026-07-19T18:31:52Z",
  "aliases" : [ "CVE-2026-64106" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits\n\nUserspace can restore an ITS Device Table Entry whose Size field encodes\nmore EventID bits than the virtual ITS supports.  The live MAPD path\nrejects that state, but vgic_its_restore_dte() accepts it and stores the\nout-of-range value in dev->num_eventid_bits.\n\nReject restored DTEs with num_eventid_bits > VITS_TYPER_IDBITS before\nallocating the device.  This mirrors the MAPD check and prevents the\nrestored state from reaching vgic_its_restore_itt(), where the unchecked\nvalue can be converted into an oversized scan_its_table() range.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64106"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0680f511926589206f81f57f76ce131d7741a316"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1716b7fea2ead941a0dfac06c4504a3437cdf00d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8bcd15b690a390241179516af1b6ae49ebfd9d95"
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    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dab9f93251b2c86a033de6098d0c73afddd55d4a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:51Z"
  }
}