CVE-2026-64214: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-5qjx-3f5w-qj49
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CVSS 5.5
CWE-476
Published
Advisory Summary

CVE-2026-64214 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64214 at a Glance

CVE Identifier CVE-2026-64214
GHSA Identifier GHSA-5qjx-3f5w-qj49
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

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

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

How to Fix CVE-2026-64214

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-2026-64214, 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-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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: powerpc/time: Remove redundant preempt_disable|enable() calls from arch_irq_work_raise() A kernel panic is observed when handling machine check exceptions from real mode. BUG: Unable to handle kernel data access on read at 0xc00000006be21300 Oops: Kernel access of bad area, sig: 11 [#1] MSR: 8000000000001003 <SF,ME,RI,LE> CR: 88222248 XER: 00000005 CFAR: c00000000003ffc4 DAR: c00000006be21300 DSISR: 40000000 IRQMASK: 0 NIP [c000000000029e40] arch_irq_work_raise+0x10/0x70 LR [c00000000003ffc8] machine_check_queue_event+0xa8/0x150 Call Trace: [c0000000179d3c70] [c00000000003ff64] machine_check_queue_event+0x44/0x150 [c0000000179d3d30] [c0000000000084e0] machine_check_early_common+0x1f0/0x2c0 The crash occurs because arch_irq_work_raise() calls preempt_disable() from machine check exception (MCE) handlers running in real mode. In this context, accessing the preempt_count can fault, leading to the panic. The preempt_disable()/preempt_enable() pair in arch_irq_work_raise() was originally added by commit 0fe1ac48bef0 ("powerpc/perf_event: Fix oops due to perf_event_do_pending call") to avoid races while raising irq work from exception context. Later, commit 471ba0e686cb ("irq_work: Do not raise an IPI when queueing work on the local CPU") added preemption protection in irq_work_queue() path, while commit 20b876918c06 ("irq_work: Use per cpu atomics instead of regular atomics") added equivalent protection in irq_work_queue_on() before reaching arch_irq_work_raise(): irq_work_queue() / irq_work_queue_on() -> preempt_disable() -> __irq_work_queue_local() -> irq_work_raise() -> arch_irq_work_raise() As a result, callers other than mce_irq_work_raise() already execute with preemption disabled, making the additional preempt_disable()/preempt_enable() pair in arch_irq_work_raise() redundant. The arch_irq_work_raise() function executes in NMI context when called from MCE handler. Hence we will not be preempted or scheduled out since we are in NMI context with MSR[EE]=0. Therefore, it is safe to remove the preempt_disable()/preempt_enable() calls from here. Remove it to avoid accessing preempt_count from real mode context. [Maddy: Fixed the commit title]

References

NVD — CVE-2026-64214 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64214
git.kernel.org/stable/c/31467b2382... WEB
https://git.kernel.org/stable/c/31467b23823ffec1f6fff407f8e3ca9af8b7491a
git.kernel.org/stable/c/51860e4235... WEB
https://git.kernel.org/stable/c/51860e423592893cd7bfa7287d99a3aff4dc3a9d
git.kernel.org/stable/c/6dcd072a5a... WEB
https://git.kernel.org/stable/c/6dcd072a5ae3aed336e4a67a7d4cc5205b240065
git.kernel.org/stable/c/72d8d1c364... WEB
https://git.kernel.org/stable/c/72d8d1c36452a4d3ee134b1da48de7518c1329f9
git.kernel.org/stable/c/8079acc5ee... WEB
https://git.kernel.org/stable/c/8079acc5ee5235a627e4586d4f42082a9000ea64
git.kernel.org/stable/c/a09d07ac45... WEB
https://git.kernel.org/stable/c/a09d07ac45e283c9861a9ceea06f56d0ba851d22

Frequently Asked Questions

What is CVE-2026-64214?
CVE-2026-64214 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64214?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64214?
CVE-2026-64214 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-64214?
CVE-2026-64214 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Maven dependencies for CVE-2026-64214?
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-5qjx-3f5w-qj49",
  "modified" : "2026-08-11T18:30:39Z",
  "published" : "2026-07-24T18:31:27Z",
  "aliases" : [ "CVE-2026-64214" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/time: Remove redundant preempt_disable|enable() calls from arch_irq_work_raise()\n\nA kernel panic is observed when handling machine check exceptions from\nreal mode.\n\n  BUG: Unable to handle kernel data access on read at 0xc00000006be21300\n  Oops: Kernel access of bad area, sig: 11 [#1]\n  MSR:  8000000000001003 <SF,ME,RI,LE>  CR: 88222248  XER: 00000005\n  CFAR: c00000000003ffc4 DAR: c00000006be21300 DSISR: 40000000 IRQMASK: 0\n  NIP [c000000000029e40] arch_irq_work_raise+0x10/0x70\n  LR [c00000000003ffc8] machine_check_queue_event+0xa8/0x150\n  Call Trace:\n  [c0000000179d3c70] [c00000000003ff64] machine_check_queue_event+0x44/0x150\n  [c0000000179d3d30] [c0000000000084e0] machine_check_early_common+0x1f0/0x2c0\n\nThe crash occurs because arch_irq_work_raise() calls preempt_disable()\nfrom machine check exception (MCE) handlers running in real mode. In\nthis context, accessing the preempt_count can fault, leading to the panic.\n\nThe preempt_disable()/preempt_enable() pair in arch_irq_work_raise()\nwas originally added by commit 0fe1ac48bef0 (\"powerpc/perf_event: Fix\noops due to perf_event_do_pending call\") to avoid races while raising\nirq work from exception context.\n\nLater, commit 471ba0e686cb (\"irq_work: Do not raise an IPI when\nqueueing work on the local CPU\") added preemption protection in\nirq_work_queue() path, while commit 20b876918c06 (\"irq_work: Use per\ncpu atomics instead of regular atomics\") added equivalent\nprotection in irq_work_queue_on() before reaching arch_irq_work_raise():\n\n  irq_work_queue() / irq_work_queue_on()\n    -> preempt_disable()\n      -> __irq_work_queue_local()\n        -> irq_work_raise()\n          -> arch_irq_work_raise()\n\nAs a result, callers other than mce_irq_work_raise() already execute\nwith preemption disabled, making the additional\npreempt_disable()/preempt_enable() pair in arch_irq_work_raise()\nredundant.\n\nThe arch_irq_work_raise() function executes in NMI context when called\nfrom MCE handler. Hence we will not be preempted or scheduled out since\nwe are in NMI context with MSR[EE]=0. Therefore, it is safe to remove\nthe preempt_disable()/preempt_enable() calls from here.\n\nRemove it to avoid accessing preempt_count from real mode context.\n\n[Maddy: Fixed the commit title]",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64214"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/31467b23823ffec1f6fff407f8e3ca9af8b7491a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/51860e423592893cd7bfa7287d99a3aff4dc3a9d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6dcd072a5ae3aed336e4a67a7d4cc5205b240065"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/72d8d1c36452a4d3ee134b1da48de7518c1329f9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8079acc5ee5235a627e4586d4f42082a9000ea64"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a09d07ac45e283c9861a9ceea06f56d0ba851d22"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-24T16:16:49Z"
  }
}