CVE-2026-64164: Software Security Vulnerability Vulnerability
MODERATECVE-2026-64164 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-2026-64164 at a Glance
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).
How to Fix CVE-2026-64164
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.
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:treeHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-64164, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:treeAnalyze 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
References
Frequently Asked Questions
What is CVE-2026-64164?
Which Software versions are affected?
What version fixes CVE-2026-64164?
What is the CVSS score of CVE-2026-64164?
What CWE is associated with CVE-2026-64164?
How can I check Maven dependencies for CVE-2026-64164?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-w7p5-2w2w-6hjm",
"modified" : "2026-08-13T15:34:15Z",
"published" : "2026-07-19T18:31:54Z",
"aliases" : [ "CVE-2026-64164" ],
"details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: tracepoints: fix sleep while in atomic context in btrfs_sync_file()\n\nThe trace event btrfs_sync_file() is called in an atomic context (all trace\nevents are) and its call to dput(), which is needed due to the call to\ndget_parent(), can sleep, triggering a kernel splat.\n\nThis can be reproduced by enabling the trace event and running btrfs/056\nfrom fstests for example. The splat shown in dmesg is the following:\n\n [53.919] BUG: sleeping function called from invalid context at fs/dcache.c:970\n [53.947] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 32773, name: xfs_io\n [53.988] preempt_count: 2, expected: 0\n [53.967] RCU nest depth: 0, expected: 0\n [53.943] Preemption disabled at:\n [53.944] [<0000000000000000>] 0x0\n [54.078] CPU: 0 UID: 0 PID: 32773 Comm: xfs_io Tainted: G W 7.1.0-rc1-btrfs-next-232+ #1 PREEMPT(full)\n [54.070] Tainted: [W]=WARN\n [54.071] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014\n [54.072] Call Trace:\n [54.074] <TASK>\n [54.076] dump_stack_lvl+0x56/0x80\n [54.079] __might_resched.cold+0xd6/0x10f\n [54.072] dput.part.0+0x24/0x110\n [54.078] trace_event_raw_event_btrfs_sync_file+0x75/0x140 [btrfs]\n [54.089] btrfs_sync_file+0x1ed/0x530 [btrfs]\n [54.087] ? __handle_mm_fault+0x8ae/0xed0\n [54.089] btrfs_do_write_iter+0x172/0x210 [btrfs]\n [54.091] vfs_write+0x21f/0x450\n [54.094] __x64_sys_pwrite64+0x8d/0xc0\n [54.096] ? do_user_addr_fault+0x20c/0x670\n [54.099] do_syscall_64+0x60/0xf20\n [54.092] ? clear_bhb_loop+0x60/0xb0\n [54.094] entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nSo stop using dget_parent() and dput() and access the parent dentry\ndirectly as dentry->d_parent. This is also what ext4 is doing in\nits equivalent trace event ext4_sync_file_enter().",
"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-2026-64164"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/0a96d9a85cd2240481297156b9bb72e10b7a8036"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/12a0487945c09760a5968d9333383014ea294117"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/26b2290baaf6da6add0f782a100766e686a33f4f"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/4361954f0e158af0530caa1e57f12b531be4658f"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/6279992c9ba2774901c9d4dd4a481162e2534714"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/c32a7e0e3c73c1c0768556a56bd78de9f7b83780"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/c73370c677646e86fc4b1780fb07027bdf847375"
}, {
"type" : "WEB",
"url" : "https://git.kernel.org/stable/c/d78b0a80eac36879ef5478707135c446920e134b"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-476" ],
"severity" : "MODERATE",
"github_reviewed" : false,
"github_reviewed_at" : null,
"nvd_published_at" : "2026-07-19T16:17:58Z"
}
}