CVE-2026-89481: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-fmg2-x8fr-fw62
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CVSS 7.5
Published
Advisory Summary

CVE-2026-89481 is a HIGH (CVSS 7.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89481 at a Glance

CVE Identifier CVE-2026-89481
GHSA Identifier GHSA-fmg2-x8fr-fw62
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-89481

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-2026-89481, 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: nvme-tcp: fix host memory disclosure on R2T for a read command nvme_tcp_handle_r2t() does not check the direction of the request the R2T refers to. A malicious controller can send an R2T for a READ and the host will answer it: nvme_tcp_setup_h2c_data_pdu() builds the H2CData header and nvme_tcp_try_send_data() sends the request's data buffer. That buffer is the READ destination, so its contents go to the controller. The command then completes normally and nothing is logged. Against a test controller that answers every READ with an R2T, a 4096 byte buffered read returned all 4096 bytes, split over two R2Ts. The pages contained stale kernel data, including an array of struct page pointers. Reject an R2T for a request that is not a write.

References

NVD — CVE-2026-89481 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89481
git.kernel.org/stable/c/3a0b051450... WEB
https://git.kernel.org/stable/c/3a0b05145053a5fad1a2ddb4e4d87b07385e63e5
git.kernel.org/stable/c/3b3d27670c... WEB
https://git.kernel.org/stable/c/3b3d27670c0c890ba7cf1bc3614cab61bde6d25c
git.kernel.org/stable/c/49a4dcf576... WEB
https://git.kernel.org/stable/c/49a4dcf57608ebf6432dbcb203ed25e7ed581445
git.kernel.org/stable/c/6efbc52237... WEB
https://git.kernel.org/stable/c/6efbc52237facda35d2d874fe1765bb4839275d8
git.kernel.org/stable/c/a4c3c73101... WEB
https://git.kernel.org/stable/c/a4c3c7310156493797c920b10d8648c07aa05403
git.kernel.org/stable/c/bc4013c7cc... WEB
https://git.kernel.org/stable/c/bc4013c7cce58d46f792c8c87bc8c8318a70190e

Frequently Asked Questions

What is CVE-2026-89481?
CVE-2026-89481 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-2026-89481?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89481?
CVE-2026-89481 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-89481?
CVE-2026-89481 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89481?
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-fmg2-x8fr-fw62",
  "modified" : "2026-09-14T15:32:25Z",
  "published" : "2026-09-11T21:31:28Z",
  "aliases" : [ "CVE-2026-89481" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-tcp: fix host memory disclosure on R2T for a read command\n\nnvme_tcp_handle_r2t() does not check the direction of the request the\nR2T refers to. A malicious controller can send an R2T for a READ and\nthe host will answer it: nvme_tcp_setup_h2c_data_pdu() builds the\nH2CData header and nvme_tcp_try_send_data() sends the request's data\nbuffer. That buffer is the READ destination, so its contents go to the\ncontroller.\n\nThe command then completes normally and nothing is logged.\n\nAgainst a test controller that answers every READ with an R2T, a 4096\nbyte buffered read returned all 4096 bytes, split over two R2Ts. The\npages contained stale kernel data, including an array of struct page\npointers.\n\nReject an R2T for a request that is not a write.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89481"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3a0b05145053a5fad1a2ddb4e4d87b07385e63e5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3b3d27670c0c890ba7cf1bc3614cab61bde6d25c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/49a4dcf57608ebf6432dbcb203ed25e7ed581445"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6efbc52237facda35d2d874fe1765bb4839275d8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a4c3c7310156493797c920b10d8648c07aa05403"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bc4013c7cce58d46f792c8c87bc8c8318a70190e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:29Z"
  }
}