CVE-2026-98323: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-6mmc-6x3m-rgjh
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CVSS 9.8
Published
Advisory Summary

CVE-2026-98323 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98323 at a Glance

CVE Identifier CVE-2026-98323
GHSA Identifier GHSA-6mmc-6x3m-rgjh
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/A:H).

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2026-98323

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-2026-98323, 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: RDMA/siw: Bound fragmented header copies by the remaining length siw_get_hdr() can receive an extended DDP/RDMAP header across more than one TCP callback. The first callback may receive most of the header, while the next one still limits the copy to hdrlen - MIN_DDP_HDR instead of the number of missing bytes. This makes the destination move past the end of the header and overwrite the receive state, including fpdu_part_rcvd. A later callback can then use a negative fpdu_part_rcvd value as a copy offset, which creates an OOB write. Use the number of header bytes already received when calculating the next copy length.

References

NVD — CVE-2026-98323 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98323
git.kernel.org/stable/c/262dcd8097... WEB
https://git.kernel.org/stable/c/262dcd809723723ed8a4e05437ec7e9c21a8f17e
git.kernel.org/stable/c/2c6fbcf4bf... WEB
https://git.kernel.org/stable/c/2c6fbcf4bfac0b2b186acc8d91154c0fa24468a7
git.kernel.org/stable/c/8628f8ebf4... WEB
https://git.kernel.org/stable/c/8628f8ebf41669302513fb3f0bf0eba38b226742
git.kernel.org/stable/c/9ff797e516... WEB
https://git.kernel.org/stable/c/9ff797e516dbc1ecb73701ec4c24055712d44411
git.kernel.org/stable/c/af9f5b474a... WEB
https://git.kernel.org/stable/c/af9f5b474a260ad23ffb9793d716a5e3bbce3b48
git.kernel.org/stable/c/b72dcfb9bf... WEB
https://git.kernel.org/stable/c/b72dcfb9bf1f0f0147cda03dc59e4002a315067f
git.kernel.org/stable/c/e6bdfdf3bc... WEB
https://git.kernel.org/stable/c/e6bdfdf3bcb02d0d626a45e8c98b7e63d2fddf9d
git.kernel.org/stable/c/eb4d7a9469... WEB
https://git.kernel.org/stable/c/eb4d7a946970469b3ab0c762432bf161d5b0836c

Frequently Asked Questions

What is CVE-2026-98323?
CVE-2026-98323 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-2026-98323?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-98323?
CVE-2026-98323 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-98323?
CVE-2026-98323 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98323?
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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  "id" : "GHSA-6mmc-6x3m-rgjh",
  "modified" : "2026-10-07T09:32:16Z",
  "published" : "2026-10-06T09:31:35Z",
  "aliases" : [ "CVE-2026-98323" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Bound fragmented header copies by the remaining length\n\nsiw_get_hdr() can receive an extended DDP/RDMAP header across more than\none TCP callback. The first callback may receive most of the header,\nwhile the next one still limits the copy to hdrlen - MIN_DDP_HDR instead\nof the number of missing bytes. This makes the destination move past the\nend of the header and overwrite the receive state, including\nfpdu_part_rcvd. A later callback can then use a negative fpdu_part_rcvd\nvalue as a copy offset, which creates an OOB write.\n\nUse the number of header bytes already received when calculating the\nnext copy length.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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  "database_specific" : {
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    "nvd_published_at" : "2026-10-06T09:18:24Z"
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