CVE-2026-89740: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-q55c-3wjg-8jjp
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Advisory Summary

CVE-2026-89740 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-2026-89740 at a Glance

CVE Identifier CVE-2026-89740
GHSA Identifier GHSA-q55c-3wjg-8jjp
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-2026-89740

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-2026-89740, 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: serial: imx: serialize imx_uart_ports[] lifetime imx_uart_probe() publishes its devm-allocated port in imx_uart_ports[] before uart_add_one_port() because console setup uses the table. The entry is not cleared when adding the port fails or after removal, leaving a dangling pointer. A sibling probe can register the shared console through that stale entry. This was reproduced under KASAN on QEMU mcimx6ul-evk by unbinding a sibling UART, unbinding the console UART and rebinding the sibling. Keep the entry valid through uart_remove_one_port(), then clear it. Protect port addition and removal together with their table updates so sibling operations cannot interleave. Reject an occupied slot rather than clobbering an active port during a duplicate-line probe.

References

NVD — CVE-2026-89740 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89740
git.kernel.org/stable/c/28b932202f... WEB
https://git.kernel.org/stable/c/28b932202fcdbeb2ef58d89ce4363f480433c234
git.kernel.org/stable/c/681696ae9e... WEB
https://git.kernel.org/stable/c/681696ae9e4a28bdf54893c807dfe4a6c08e30a5
git.kernel.org/stable/c/7429dce56a... WEB
https://git.kernel.org/stable/c/7429dce56a73bc080a8c072edb167106f73a08ae
git.kernel.org/stable/c/8b0b29fdcb... WEB
https://git.kernel.org/stable/c/8b0b29fdcb47907ae0296b8fe829e918e05e300f

Frequently Asked Questions

What is CVE-2026-89740?
CVE-2026-89740 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-2026-89740?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89740?
CVE-2026-89740 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89740?
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-q55c-3wjg-8jjp",
  "modified" : "2026-09-11T21:31:38Z",
  "published" : "2026-09-11T21:31:38Z",
  "aliases" : [ "CVE-2026-89740" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: imx: serialize imx_uart_ports[] lifetime\n\nimx_uart_probe() publishes its devm-allocated port in imx_uart_ports[]\nbefore uart_add_one_port() because console setup uses the table. The entry\nis not cleared when adding the port fails or after removal, leaving a\ndangling pointer.\n\nA sibling probe can register the shared console through that stale entry.\nThis was reproduced under KASAN on QEMU mcimx6ul-evk by unbinding a\nsibling UART, unbinding the console UART and rebinding the sibling.\n\nKeep the entry valid through uart_remove_one_port(), then clear it. Protect\nport addition and removal together with their table updates so sibling\noperations cannot interleave. Reject an occupied slot rather than\nclobbering an active port during a duplicate-line probe.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89740"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/28b932202fcdbeb2ef58d89ce4363f480433c234"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/681696ae9e4a28bdf54893c807dfe4a6c08e30a5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7429dce56a73bc080a8c072edb167106f73a08ae"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8b0b29fdcb47907ae0296b8fe829e918e05e300f"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:20:04Z"
  }
}