CVE-2026-89573: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-pg3h-8qxx-35hj
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CVSS 7.8
Published
Advisory Summary

CVE-2026-89573 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-2026-89573 at a Glance

CVE Identifier CVE-2026-89573
GHSA Identifier GHSA-pg3h-8qxx-35hj
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-2026-89573

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-2026-89573, 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: dm array: reject an array block whose value size is not the caller's array_block_check() can only compare the header against itself, so a block with value_size 4 and max_entries 1018 is internally consistent and passes. dm-cache keeps two arrays -- mappings at 8 bytes and hints at 4 -- and the roots for both live in the superblock. Point the mappings root at a hint block and __load_mappings() walks it through an info whose value size is 8, so element_at() strides 8 bytes over 4-byte entries and reaches offset 8160 of a 4096-byte block. get_ablock() and __shadow_ablock() are the two places that hold the block and the caller at once. Reject there when the two value sizes disagree. Arrays only ever read their own blocks, so this fires on crafted metadata only.

References

NVD — CVE-2026-89573 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89573
git.kernel.org/stable/c/35cd3b2784... WEB
https://git.kernel.org/stable/c/35cd3b278448c79614f65ab6bbc9ed348d847df9
git.kernel.org/stable/c/4538a287bd... WEB
https://git.kernel.org/stable/c/4538a287bdf5d0f9a379c678e5262b9f5783f547
git.kernel.org/stable/c/522fa26da2... WEB
https://git.kernel.org/stable/c/522fa26da24ccaa298ebe3c1c97395d2d63dfc21
git.kernel.org/stable/c/7bf4b5cb42... WEB
https://git.kernel.org/stable/c/7bf4b5cb42a4e27f36bcbc6209d82a5da9c0168c
git.kernel.org/stable/c/a530a9a419... WEB
https://git.kernel.org/stable/c/a530a9a419a7c5fdb7dae55ffa2dd7a130631842
git.kernel.org/stable/c/a8237cb8fa... WEB
https://git.kernel.org/stable/c/a8237cb8fa0a628d903e76635bfdeae4202036b9
git.kernel.org/stable/c/ac4a5eb8b0... WEB
https://git.kernel.org/stable/c/ac4a5eb8b002a0742c938fc98b922e243f53573a
git.kernel.org/stable/c/cb409b38b0... WEB
https://git.kernel.org/stable/c/cb409b38b0232ee4385ef55cddcd6fbdd011a8a2

Frequently Asked Questions

What is CVE-2026-89573?
CVE-2026-89573 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-2026-89573?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89573?
CVE-2026-89573 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-2026-89573?
CVE-2026-89573 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89573?
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-pg3h-8qxx-35hj",
  "modified" : "2026-09-14T15:32:29Z",
  "published" : "2026-09-11T21:31:32Z",
  "aliases" : [ "CVE-2026-89573" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndm array: reject an array block whose value size is not the caller's\n\narray_block_check() can only compare the header against itself, so a block\nwith value_size 4 and max_entries 1018 is internally consistent and passes.\ndm-cache keeps two arrays -- mappings at 8 bytes and hints at 4 -- and the\nroots for both live in the superblock. Point the mappings root at a hint\nblock and __load_mappings() walks it through an info whose value size is 8,\nso element_at() strides 8 bytes over 4-byte entries and reaches offset 8160\nof a 4096-byte block.\n\nget_ablock() and __shadow_ablock() are the two places that hold the block\nand the caller at once. Reject there when the two value sizes disagree.\nArrays only ever read their own blocks, so this fires on crafted metadata\nonly.",
  "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",
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  }, {
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    "url" : "https://git.kernel.org/stable/c/35cd3b278448c79614f65ab6bbc9ed348d847df9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4538a287bdf5d0f9a379c678e5262b9f5783f547"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/522fa26da24ccaa298ebe3c1c97395d2d63dfc21"
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    "url" : "https://git.kernel.org/stable/c/ac4a5eb8b002a0742c938fc98b922e243f53573a"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cb409b38b0232ee4385ef55cddcd6fbdd011a8a2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:41Z"
  }
}