CVE-2026-90325: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-5ghq-73f5-5j56
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CVSS 7.8
Published
Advisory Summary

CVE-2026-90325 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-90325 at a Glance

CVE Identifier CVE-2026-90325
GHSA Identifier GHSA-5ghq-73f5-5j56
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-90325

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-2026-90325, 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: blk-cgroup: skip dying blkg in blkcg_activate_policy() When switching IO schedulers on a block device, blkcg_activate_policy() can race with concurrent blkcg deletion, leading to a use-after-free in rcu_accelerate_cbs. T1: T2: blkg_destroy kill(&blkg->refcnt) // blkg->refcnt=1->0 blkg_release // call_rcu(__blkg_release) ... blkg_free_workfn ->pd_free_fn(pd) elv_iosched_store elevator_switch ... iterate blkg list blkg_get(blkg) // blkg->refcnt=0->1 list_del_init(&blkg->q_node) blkg_put(pinned_blkg) // blkg->refcnt=1->0 blkg_release // call_rcu again rcu_accelerate_cbs // uaf Fix this by checking hlist_unhashed(&blkg->blkcg_node) before getting a reference to the blkg. This is the same check used in blkg_destroy() to detect if a blkg has already been destroyed. If the blkg is already unhashed, skip processing it since it's being destroyed.

References

NVD — CVE-2026-90325 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90325
git.kernel.org/stable/c/083b583734... WEB
https://git.kernel.org/stable/c/083b58373463a6e5ee60ecb135269348f68ad7df
git.kernel.org/stable/c/1a267295b1... WEB
https://git.kernel.org/stable/c/1a267295b1ea6a6477963f3fda84adfecd48fcad
git.kernel.org/stable/c/3d8c3da95c... WEB
https://git.kernel.org/stable/c/3d8c3da95c75a4d312e272fc7b4076dd3ba9115c
git.kernel.org/stable/c/5e92203899... WEB
https://git.kernel.org/stable/c/5e9220389920f33b6a804d50c548cd0cd1b04634
git.kernel.org/stable/c/7337d012ca... WEB
https://git.kernel.org/stable/c/7337d012ca3fc3a6a2d1c8e2a19c6d97c38b410d
git.kernel.org/stable/c/b5dae1cd0d... WEB
https://git.kernel.org/stable/c/b5dae1cd0d8368b4338430ff93403df67f0b8bcc
git.kernel.org/stable/c/d8c872901e... WEB
https://git.kernel.org/stable/c/d8c872901e6459339374e9eea80aa919176c2ccd

Frequently Asked Questions

What is CVE-2026-90325?
CVE-2026-90325 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-2026-90325?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-90325?
CVE-2026-90325 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-90325?
CVE-2026-90325 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90325?
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-5ghq-73f5-5j56",
  "modified" : "2026-09-18T18:31:29Z",
  "published" : "2026-09-17T18:32:01Z",
  "aliases" : [ "CVE-2026-90325" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: skip dying blkg in blkcg_activate_policy()\n\nWhen switching IO schedulers on a block device, blkcg_activate_policy()\ncan race with concurrent blkcg deletion, leading to a use-after-free in\nrcu_accelerate_cbs.\n\nT1:                               T2:\n                                  blkg_destroy\n                                  kill(&blkg->refcnt) // blkg->refcnt=1->0\n                                  blkg_release // call_rcu(__blkg_release)\n                                  ...\n                                  blkg_free_workfn\n                                  ->pd_free_fn(pd)\nelv_iosched_store\nelevator_switch\n...\niterate blkg list\nblkg_get(blkg) // blkg->refcnt=0->1\n                                  list_del_init(&blkg->q_node)\nblkg_put(pinned_blkg) // blkg->refcnt=1->0\nblkg_release // call_rcu again\nrcu_accelerate_cbs // uaf\n\nFix this by checking hlist_unhashed(&blkg->blkcg_node) before getting\na reference to the blkg. This is the same check used in blkg_destroy()\nto detect if a blkg has already been destroyed. If the blkg is already\nunhashed, skip processing it since it's being destroyed.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90325"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/083b58373463a6e5ee60ecb135269348f68ad7df"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1a267295b1ea6a6477963f3fda84adfecd48fcad"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3d8c3da95c75a4d312e272fc7b4076dd3ba9115c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5e9220389920f33b6a804d50c548cd0cd1b04634"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7337d012ca3fc3a6a2d1c8e2a19c6d97c38b410d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b5dae1cd0d8368b4338430ff93403df67f0b8bcc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d8c872901e6459339374e9eea80aa919176c2ccd"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:17:30Z"
  }
}