CVE-2026-89456: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-54rx-hjqg-c852
Share
CVSS 7.0
Published
Advisory Summary

CVE-2026-89456 is a HIGH (CVSS 7.0) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89456 at a Glance

CVE Identifier CVE-2026-89456
GHSA Identifier GHSA-54rx-hjqg-c852
Severity HIGH
CVSS v3.1 Base Score 7.0
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
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-2026-89456

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-2026-89456, 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: s390/dasd: Propagate partial completion length across ERP recovery dasd_default_erp_postaction() copies the timing and device state from the finished ERP request back to the original request but drops proc_bytes. A request that was partially completed, an ESE read of a not-yet-allocated track returns fewer bytes than requested, and then recovered through the ERP chain loses its partial-completion length. __dasd_cleanup_cqr() then sees proc_bytes == 0 and completes the whole request instead of requeueing the remainder, silently returning zeroed data for the part that was never read. Carry proc_bytes over to the original request like the other per-request state.

References

NVD — CVE-2026-89456 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89456
git.kernel.org/stable/c/15ec03452c... WEB
https://git.kernel.org/stable/c/15ec03452c18e8d288e519837d21b308300d74b2
git.kernel.org/stable/c/6b0954c8a2... WEB
https://git.kernel.org/stable/c/6b0954c8a259da1e4aa745989f82723947acfb46
git.kernel.org/stable/c/6fb5ba2e7e... WEB
https://git.kernel.org/stable/c/6fb5ba2e7e43173a3761e46f091070a8185efa14
git.kernel.org/stable/c/9e063165d3... WEB
https://git.kernel.org/stable/c/9e063165d3fe58db2a517717b830f17e82d03467
git.kernel.org/stable/c/ceafb26247... WEB
https://git.kernel.org/stable/c/ceafb262475ac6cb3a7d07b1102608be2b216b99
git.kernel.org/stable/c/d0a2f97d8c... WEB
https://git.kernel.org/stable/c/d0a2f97d8c97134aa7f6a191940b7bab4bb42f5f
git.kernel.org/stable/c/d6b8778b1b... WEB
https://git.kernel.org/stable/c/d6b8778b1b82aa3a8dbf8612080f635b834bd16b
git.kernel.org/stable/c/f735b9710f... WEB
https://git.kernel.org/stable/c/f735b9710f0c8fe72c1060103e865f4ae678190b

Frequently Asked Questions

What is CVE-2026-89456?
CVE-2026-89456 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-2026-89456?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89456?
CVE-2026-89456 has a CVSS v3.1 base score of 7.0 (HIGH) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-89456?
CVE-2026-89456 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89456?
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-54rx-hjqg-c852",
  "modified" : "2026-09-14T15:32:24Z",
  "published" : "2026-09-11T21:31:26Z",
  "aliases" : [ "CVE-2026-89456" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: Propagate partial completion length across ERP recovery\n\ndasd_default_erp_postaction() copies the timing and device state from\nthe finished ERP request back to the original request but drops\nproc_bytes. A request that was partially completed, an ESE read of a\nnot-yet-allocated track returns fewer bytes than requested, and then\nrecovered through the ERP chain loses its partial-completion length.\n__dasd_cleanup_cqr() then sees proc_bytes == 0 and completes the whole\nrequest instead of requeueing the remainder, silently returning zeroed\ndata for the part that was never read.\n\nCarry proc_bytes over to the original request like the other\nper-request state.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89456"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/15ec03452c18e8d288e519837d21b308300d74b2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6b0954c8a259da1e4aa745989f82723947acfb46"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6fb5ba2e7e43173a3761e46f091070a8185efa14"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9e063165d3fe58db2a517717b830f17e82d03467"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ceafb262475ac6cb3a7d07b1102608be2b216b99"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d0a2f97d8c97134aa7f6a191940b7bab4bb42f5f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d6b8778b1b82aa3a8dbf8612080f635b834bd16b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f735b9710f0c8fe72c1060103e865f4ae678190b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:26Z"
  }
}