CVE-2026-89953: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-wvj7-v5wh-67w6
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Advisory Summary

CVE-2026-89953 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-2026-89953 at a Glance

CVE Identifier CVE-2026-89953
GHSA Identifier GHSA-wvj7-v5wh-67w6
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-2026-89953

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-2026-89953, 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: mtd: mtdoops: free page bitmap when the backing MTD is removed mtdoops_notify_add() allocates oops_page_used when the configured MTD device is registered. mtdoops_notify_remove() detaches from that device but leaves the bitmap allocated. If the same MTD device is later registered again, the add path allocates a new bitmap and overwrites the old pointer, leaking one vmalloc allocation per remove/add cycle. This is only visible when the backing MTD device can disappear and be registered again while mtdoops remains loaded, so the usual static MTD case does not expose it. Free the bitmap after unregistering the dumper and flushing the pending workers, then clear the pointer and page count before a later attach can allocate fresh state. Clearing the pointer also keeps the module exit path from freeing the same bitmap a second time after a remove event.

References

NVD — CVE-2026-89953 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89953
git.kernel.org/stable/c/1e5cd8bc90... WEB
https://git.kernel.org/stable/c/1e5cd8bc902331ff801df88cbb299029ae062753
git.kernel.org/stable/c/477d61d54e... WEB
https://git.kernel.org/stable/c/477d61d54e097e90f748aa18d013805abd56bcbd
git.kernel.org/stable/c/6989441320... WEB
https://git.kernel.org/stable/c/698944132083d143ef965c0090ee14ba1d9e1a5f
git.kernel.org/stable/c/8414f0e9f7... WEB
https://git.kernel.org/stable/c/8414f0e9f707226de20b48c7048179fd86d352fc
git.kernel.org/stable/c/956e7da12c... WEB
https://git.kernel.org/stable/c/956e7da12c114f13c63d126ab1d79c3b6a819060
git.kernel.org/stable/c/a91ac71e67... WEB
https://git.kernel.org/stable/c/a91ac71e67c3e01ed9afd9841435bebb930293f8
git.kernel.org/stable/c/d06f91a52a... WEB
https://git.kernel.org/stable/c/d06f91a52af11630c9f7e487f6daf242ac310cb8
git.kernel.org/stable/c/f25c804947... WEB
https://git.kernel.org/stable/c/f25c804947e0a28c15e73da8e2e0db959cbed716

Frequently Asked Questions

What is CVE-2026-89953?
CVE-2026-89953 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-2026-89953?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89953?
CVE-2026-89953 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89953?
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 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-wvj7-v5wh-67w6",
  "modified" : "2026-09-16T12:30:43Z",
  "published" : "2026-09-16T12:30:43Z",
  "aliases" : [ "CVE-2026-89953" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: mtdoops: free page bitmap when the backing MTD is removed\n\nmtdoops_notify_add() allocates oops_page_used when the configured MTD\ndevice is registered.  mtdoops_notify_remove() detaches from that device\nbut leaves the bitmap allocated.  If the same MTD device is later\nregistered again, the add path allocates a new bitmap and overwrites the\nold pointer, leaking one vmalloc allocation per remove/add cycle.\n\nThis is only visible when the backing MTD device can disappear and be\nregistered again while mtdoops remains loaded, so the usual static MTD\ncase does not expose it.\n\nFree the bitmap after unregistering the dumper and flushing the pending\nworkers, then clear the pointer and page count before a later attach can\nallocate fresh state.  Clearing the pointer also keeps the module exit\npath from freeing the same bitmap a second time after a remove event.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1e5cd8bc902331ff801df88cbb299029ae062753"
  }, {
    "type" : "WEB",
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    "url" : "https://git.kernel.org/stable/c/698944132083d143ef965c0090ee14ba1d9e1a5f"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T11:17:05Z"
  }
}