CVE-2026-90156: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-7qq9-mrjw-5hqq
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Advisory Summary

CVE-2026-90156 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-2026-90156 at a Glance

CVE Identifier CVE-2026-90156
GHSA Identifier GHSA-7qq9-mrjw-5hqq
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-2026-90156

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-2026-90156, 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: ksmbd: safely discard unregistered deferred locks When vfs_lock_file() defers a lock, smb2_lock() puts its ksmbd_lock on rollback_list before allocating and registering the asynchronous work. If either operation fails, rollback assumes that smb_lock->conn is initialized and dereferences NULL. The deferred file_lock also remains linked into the VFS blocked-lock state while it is freed. Keep the lock off rollback_list until async setup succeeds. On setup failures, explicitly unblock and wake the deferred lock before freeing it and its ksmbd wrapper.

References

NVD — CVE-2026-90156 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90156
git.kernel.org/stable/c/054bcca4cd... WEB
https://git.kernel.org/stable/c/054bcca4cd9f00719b01f7108b51a2168fb94f15
git.kernel.org/stable/c/52b91bc525... WEB
https://git.kernel.org/stable/c/52b91bc5253bb83665f3ea70565d0b2487dae643
git.kernel.org/stable/c/d09af9a35f... WEB
https://git.kernel.org/stable/c/d09af9a35ff7b77a950b507133d9092aadbfeff4

Frequently Asked Questions

What is CVE-2026-90156?
CVE-2026-90156 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-2026-90156?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90156?
CVE-2026-90156 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90156?
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-7qq9-mrjw-5hqq",
  "modified" : "2026-10-15T12:30:48Z",
  "published" : "2026-09-17T18:31:53Z",
  "aliases" : [ "CVE-2026-90156" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: safely discard unregistered deferred locks\n\nWhen vfs_lock_file() defers a lock, smb2_lock() puts its ksmbd_lock on\nrollback_list before allocating and registering the asynchronous work.\nIf either operation fails, rollback assumes that smb_lock->conn is\ninitialized and dereferences NULL. The deferred file_lock also remains\nlinked into the VFS blocked-lock state while it is freed.\n\nKeep the lock off rollback_list until async setup succeeds. On setup\nfailures, explicitly unblock and wake the deferred lock before freeing it\nand its ksmbd wrapper.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90156"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/054bcca4cd9f00719b01f7108b51a2168fb94f15"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/52b91bc5253bb83665f3ea70565d0b2487dae643"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d09af9a35ff7b77a950b507133d9092aadbfeff4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:17:08Z"
  }
}