CVE-2026-90303: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-3rvr-4rpw-5w37
Share
Published
Advisory Summary

CVE-2026-90303 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-2026-90303 at a Glance

CVE Identifier CVE-2026-90303
GHSA Identifier GHSA-3rvr-4rpw-5w37
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-2026-90303

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-2026-90303, 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: ARM: 9485/1: mm: acquire mmap write lock around show_pte() for user faults When CONFIG_DEBUG_USER=y, and cmdline "user_debug=31" is set, a user fault may trigger show_pte() without any lock. If another thread in the same process concurrently calls munmap(), the page table pages may be freed while show_pte() is still traversing them, causing a use-after-free in show_pte(). If CONFIG_ARM_LPAE=y, this may cause a kernel panic if the pages table of PMD are freed when show_pte() is running. Acquire mmap_write_lock() around show_pte() for user faults to fix the contention. For user faults, additionally restrict that show_pte() is called only when the addr is a user-space address (addr < TASK_SIZE). This is because the lock of tsk->mm only protects the virtual memory of user address space, furthermore, dumping the page tables of a kernel-space address for user faults is unnecessary and may have security implications. Keep everything unchanged for kernel faults, because the kernel is already in the "oops" state, acquiring a lock may risk a deadlock.

References

NVD — CVE-2026-90303 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90303
git.kernel.org/stable/c/07e4d5380f... WEB
https://git.kernel.org/stable/c/07e4d5380f2a844ab7a1b440dde350caf561cbb0
git.kernel.org/stable/c/1039bffd6a... WEB
https://git.kernel.org/stable/c/1039bffd6ae9c75b42b7d148d6c1106134107b66
git.kernel.org/stable/c/2a14d7797a... WEB
https://git.kernel.org/stable/c/2a14d7797a49a47bccd1a9327fd69da838dcb0dd
git.kernel.org/stable/c/59bbf86d0f... WEB
https://git.kernel.org/stable/c/59bbf86d0ff9373bfa033ca123c1e924f09f1eba
git.kernel.org/stable/c/63e3c958a6... WEB
https://git.kernel.org/stable/c/63e3c958a602d0896a101a897c2361878c266ca7
git.kernel.org/stable/c/720408d98d... WEB
https://git.kernel.org/stable/c/720408d98d9fb3c91a12090436734c8c61f04545
git.kernel.org/stable/c/ab14f07952... WEB
https://git.kernel.org/stable/c/ab14f07952adfe735d86a53518f8cd576dfd5892
git.kernel.org/stable/c/c71f9a5652... WEB
https://git.kernel.org/stable/c/c71f9a56520b419e55d173052629f2324deb5549

Frequently Asked Questions

What is CVE-2026-90303?
CVE-2026-90303 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-2026-90303?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90303?
CVE-2026-90303 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90303?
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-3rvr-4rpw-5w37",
  "modified" : "2026-09-17T18:32:00Z",
  "published" : "2026-09-17T18:32:00Z",
  "aliases" : [ "CVE-2026-90303" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9485/1: mm: acquire mmap write lock around show_pte() for user faults\n\nWhen CONFIG_DEBUG_USER=y, and cmdline \"user_debug=31\" is set,\na user fault may trigger show_pte() without any lock.\nIf another thread in the same process concurrently calls munmap(),\nthe page table pages may be freed while show_pte() is still traversing\nthem, causing a use-after-free in show_pte().\n\nIf CONFIG_ARM_LPAE=y, this may cause a kernel panic if the pages table\nof PMD are freed when show_pte() is running.\n\nAcquire mmap_write_lock() around show_pte() for user faults to fix the\ncontention.\n\nFor user faults, additionally restrict that show_pte() is called only\nwhen the addr is a user-space address (addr < TASK_SIZE). This is because\nthe lock of tsk->mm only protects the virtual memory of user address space,\nfurthermore, dumping the page tables of a kernel-space address for user\nfaults is unnecessary and may have security implications.\n\nKeep everything unchanged for kernel faults, because the kernel is\nalready in the \"oops\" state, acquiring a lock may risk a deadlock.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90303"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/07e4d5380f2a844ab7a1b440dde350caf561cbb0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1039bffd6ae9c75b42b7d148d6c1106134107b66"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2a14d7797a49a47bccd1a9327fd69da838dcb0dd"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/59bbf86d0ff9373bfa033ca123c1e924f09f1eba"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/63e3c958a602d0896a101a897c2361878c266ca7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/720408d98d9fb3c91a12090436734c8c61f04545"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ab14f07952adfe735d86a53518f8cd576dfd5892"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c71f9a56520b419e55d173052629f2324deb5549"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:17:27Z"
  }
}