CVE-2026-98557: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-jvwf-rjpr-3g5x
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Advisory Summary

CVE-2026-98557 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-2026-98557 at a Glance

CVE Identifier CVE-2026-98557
GHSA Identifier GHSA-jvwf-rjpr-3g5x
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-2026-98557

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-2026-98557, 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: gve: DQO: fix header length used by gve_can_send_tso() for UDP GSO gve_can_send_tso() computes how many buffers each segment of a GSO packet would span, and for this it needs the length of the headers that the device replicates in front of every segment. It unconditionally uses skb_tcp_all_headers(), which reads the doff field of the TCP header. SKB_GSO_UDP_L4 packets have no TCP header: tcp_hdrlen() then reads one byte of the UDP payload, and header_len can be anything in [0, 60] instead of the transport offset plus the eight bytes of the UDP header that gve_prep_tso() programs into the TSO context descriptor. A wrong header length shifts all the segment boundaries computed in the loop, so the number of buffers per segment can be over or under estimated. In the first case, GSO is needlessly disabled for this packet by gve_features_check_dqo() and the stack has to segment it. In the second case, the driver hands the device a packet whose segments span more than GVE_TX_MAX_DATA_DESCS buffers. Use the UDP header length for SKB_GSO_UDP_L4 packets, matching what gve_prep_tso() does.

References

NVD — CVE-2026-98557 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98557
git.kernel.org/stable/c/83769c23fb... WEB
https://git.kernel.org/stable/c/83769c23fb1879edc916a526ba424285033baf2d
git.kernel.org/stable/c/dc9e8964a2... WEB
https://git.kernel.org/stable/c/dc9e8964a21f20620dbfca4ef3e11eefa7be6451
git.kernel.org/stable/c/feab3880a7... WEB
https://git.kernel.org/stable/c/feab3880a72b43913d332c06b75bb80526fa47ba

Frequently Asked Questions

What is CVE-2026-98557?
CVE-2026-98557 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-2026-98557?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98557?
CVE-2026-98557 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98557?
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-jvwf-rjpr-3g5x",
  "modified" : "2026-10-18T18:31:54Z",
  "published" : "2026-10-18T18:31:54Z",
  "aliases" : [ "CVE-2026-98557" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ngve: DQO: fix header length used by gve_can_send_tso() for UDP GSO\n\ngve_can_send_tso() computes how many buffers each segment of a GSO\npacket would span, and for this it needs the length of the headers\nthat the device replicates in front of every segment.\n\nIt unconditionally uses skb_tcp_all_headers(), which reads the doff\nfield of the TCP header. SKB_GSO_UDP_L4 packets have no TCP header:\ntcp_hdrlen() then reads one byte of the UDP payload, and header_len\ncan be anything in [0, 60] instead of the transport offset plus the\neight bytes of the UDP header that gve_prep_tso() programs into the\nTSO context descriptor.\n\nA wrong header length shifts all the segment boundaries computed in\nthe loop, so the number of buffers per segment can be over or under\nestimated. In the first case, GSO is needlessly disabled for this\npacket by gve_features_check_dqo() and the stack has to segment it.\nIn the second case, the driver hands the device a packet whose\nsegments span more than GVE_TX_MAX_DATA_DESCS buffers.\n\nUse the UDP header length for SKB_GSO_UDP_L4 packets, matching what\ngve_prep_tso() does.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98557"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/83769c23fb1879edc916a526ba424285033baf2d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dc9e8964a21f20620dbfca4ef3e11eefa7be6451"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/feab3880a72b43913d332c06b75bb80526fa47ba"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:07Z"
  }
}