CVE-2026-90063: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-86wj-v2pm-25hq
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Advisory Summary

CVE-2026-90063 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-2026-90063 at a Glance

CVE Identifier CVE-2026-90063
GHSA Identifier GHSA-86wj-v2pm-25hq
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-2026-90063

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-2026-90063, 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: virtio-net: Ensure that TCP packets don't overflow gso_segs The user can specify any gso_size in a packet crafted with an AF_PACKET PACKET_VNET_HDR socket, even smaller than TCP_MIN_GSO_SIZE = 8. At the same time, GSO_MAX_SIZE = 8 * GSO_MAX_SEGS = 8 * 65535. When the user crafts a packet with gso_size < 8, there is a risk for partial GSO to overflow the 16-bit gso_segs field when dividing the SKB length by gso_size. Adjust gso_size of TCP packets to be at least TCP_MIN_GSO_SIZE = 8. Keep gso_size of UDP GSO packets, as gso_size=1 is valid and explicitly tested at tools/testing/selftests/net/tun.c:649.

References

NVD — CVE-2026-90063 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90063
git.kernel.org/stable/c/0e5ed3b98d... WEB
https://git.kernel.org/stable/c/0e5ed3b98d1d8d251acfdccfeaa607453ad12954
git.kernel.org/stable/c/29bd12c7c5... WEB
https://git.kernel.org/stable/c/29bd12c7c5f9d6cf855b87bace18f71e9607f9e8
git.kernel.org/stable/c/339f47ae04... WEB
https://git.kernel.org/stable/c/339f47ae04dcc6b5a730dd6bc70dddc8937c3260
git.kernel.org/stable/c/75c271c48f... WEB
https://git.kernel.org/stable/c/75c271c48f483af678e514734e10b2452410e08c
git.kernel.org/stable/c/8f6667a081... WEB
https://git.kernel.org/stable/c/8f6667a081887c2b59c6f3dd86c1789ada563762
git.kernel.org/stable/c/c27c449d45... WEB
https://git.kernel.org/stable/c/c27c449d455aafd9018a3cbab150f1c42c87923f
git.kernel.org/stable/c/d3d111fe80... WEB
https://git.kernel.org/stable/c/d3d111fe809773edbb4ae121e36253b7d683509a

Frequently Asked Questions

What is CVE-2026-90063?
CVE-2026-90063 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-2026-90063?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-90063?
CVE-2026-90063 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-90063?
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-86wj-v2pm-25hq",
  "modified" : "2026-09-17T18:31:49Z",
  "published" : "2026-09-17T18:31:49Z",
  "aliases" : [ "CVE-2026-90063" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: Ensure that TCP packets don't overflow gso_segs\n\nThe user can specify any gso_size in a packet crafted with an AF_PACKET\nPACKET_VNET_HDR socket, even smaller than TCP_MIN_GSO_SIZE = 8. At the\nsame time, GSO_MAX_SIZE = 8 * GSO_MAX_SEGS = 8 * 65535. When the user\ncrafts a packet with gso_size < 8, there is a risk for partial GSO to\noverflow the 16-bit gso_segs field when dividing the SKB length by\ngso_size.\n\nAdjust gso_size of TCP packets to be at least TCP_MIN_GSO_SIZE = 8. Keep\ngso_size of UDP GSO packets, as gso_size=1 is valid and explicitly\ntested at tools/testing/selftests/net/tun.c:649.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90063"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0e5ed3b98d1d8d251acfdccfeaa607453ad12954"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/29bd12c7c5f9d6cf855b87bace18f71e9607f9e8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/339f47ae04dcc6b5a730dd6bc70dddc8937c3260"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/75c271c48f483af678e514734e10b2452410e08c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8f6667a081887c2b59c6f3dd86c1789ada563762"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c27c449d455aafd9018a3cbab150f1c42c87923f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d3d111fe809773edbb4ae121e36253b7d683509a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:16:55Z"
  }
}