CVE-2026-90252: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-9q76-v4mr-q636
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Advisory Summary

CVE-2026-90252 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-2026-90252 at a Glance

CVE Identifier CVE-2026-90252
GHSA Identifier GHSA-9q76-v4mr-q636
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-2026-90252

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-2026-90252, 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: Bluetooth: MGMT: free the HCI command when it is cancelled mgmt_hci_cmd_sync() queues the pending command with a NULL destroy callback, so it is only freed if send_hci_cmd_sync() runs. A cancelled entry is leaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when there is no destroy callback, and hci_cmd_sync_clear() cancels every pending entry when the controller is unregistered. Nothing else reclaims it either: mgmt_pending_new() does not put the command on hdev->mgmt_pending. The leak also pins the socket reference taken by mgmt_pending_new(), so the mgmt socket is never released. Free the command from a destroy callback. The now-empty done label is replaced by a direct return.

References

NVD — CVE-2026-90252 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90252
git.kernel.org/stable/c/414b365ece... WEB
https://git.kernel.org/stable/c/414b365ecea6c30357adee6b8a7c5edc03a03575
git.kernel.org/stable/c/481533b039... WEB
https://git.kernel.org/stable/c/481533b03985177ddc805e0bd12fc07e7adf9040
git.kernel.org/stable/c/e0cd7b34dc... WEB
https://git.kernel.org/stable/c/e0cd7b34dc6b5414cac3d4cd376f73d3e9ffbd93

Frequently Asked Questions

What is CVE-2026-90252?
CVE-2026-90252 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-2026-90252?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90252?
CVE-2026-90252 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90252?
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-9q76-v4mr-q636",
  "modified" : "2026-09-17T18:31:57Z",
  "published" : "2026-09-17T18:31:57Z",
  "aliases" : [ "CVE-2026-90252" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: free the HCI command when it is cancelled\n\nmgmt_hci_cmd_sync() queues the pending command with a NULL destroy\ncallback, so it is only freed if send_hci_cmd_sync() runs. A cancelled\nentry is leaked, as _hci_cmd_sync_cancel_entry() does not release\nentry->data when there is no destroy callback, and hci_cmd_sync_clear()\ncancels every pending entry when the controller is unregistered. Nothing\nelse reclaims it either: mgmt_pending_new() does not put the command on\nhdev->mgmt_pending.\n\nThe leak also pins the socket reference taken by mgmt_pending_new(), so\nthe mgmt socket is never released.\n\nFree the command from a destroy callback. The now-empty done label is\nreplaced by a direct return.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90252"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/414b365ecea6c30357adee6b8a7c5edc03a03575"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/481533b03985177ddc805e0bd12fc07e7adf9040"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e0cd7b34dc6b5414cac3d4cd376f73d3e9ffbd93"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:17:21Z"
  }
}