CVE-2026-98096: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-qgrh-x7hc-r5h3
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CVSS 7.4
Published
Advisory Summary

CVE-2026-98096 is a HIGH (CVSS 7.4) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-98096 at a Glance

CVE Identifier CVE-2026-98096
GHSA Identifier GHSA-qgrh-x7hc-r5h3
Severity HIGH
CVSS v3.1 Base Score 7.4
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.4

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

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

How to Fix CVE-2026-98096

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-2026-98096, 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: ipv6: sr: restore network header before routing and forwarding ipv6_srh_rcv() runs with skb->data at the Segment Routing Header (SRH) while skb_network_header() points at the IPv6 header. When segments_left > 0, ipv6_srh_rcv() previously restored the skb->data position by pushing sizeof(struct ipv6hdr), assuming the SRH immediately followed the fixed IPv6 header. If another extension header (such as a Hop-by-Hop options header) precedes the SRH, skb_network_offset() remained negative. This led to two problems: 1. During ip6_route_input(), fib6_rules_early_flow_dissect() invokes __skb_flow_dissect() which passes the negative skb_network_offset() to flow dissection, breaking BPF and C flow dissector logic. 2. If forwarded via ip6_forward() or redirected via act_mirred, downstream handlers (like sch_fragment() or neighbour output) pass the negative offset as an unsigned length, triggering OOB memcpy or buffer overflows. Fix this by pushing -skb_network_offset(skb) before routing, ensuring skb_network_offset(skb) is 0 for route lookup / flow dissection as well as downstream forwarding. On the loopback path, pull skb_transport_offset(skb) to restore skb->data to the SRH before looping back.

References

NVD — CVE-2026-98096 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98096
git.kernel.org/stable/c/3ad7dca5e0... WEB
https://git.kernel.org/stable/c/3ad7dca5e03bd64c65983a19734337512fd75491
git.kernel.org/stable/c/8f44d4160b... WEB
https://git.kernel.org/stable/c/8f44d4160bcdb3136a9145a4b9c7816382976925
git.kernel.org/stable/c/975b5b067f... WEB
https://git.kernel.org/stable/c/975b5b067f525a1b1338c4a3bee1c46545801518
git.kernel.org/stable/c/97b21ef57d... WEB
https://git.kernel.org/stable/c/97b21ef57dfabbff660a4672c9fef7edfb720f47
git.kernel.org/stable/c/9cfbe2c381... WEB
https://git.kernel.org/stable/c/9cfbe2c381ab6d00a08e7a5b6028865adfb4e1bc
git.kernel.org/stable/c/af08f62b5a... WEB
https://git.kernel.org/stable/c/af08f62b5a5a446d6134a92d86771d3d12e0e3da
git.kernel.org/stable/c/ce4c8beedc... WEB
https://git.kernel.org/stable/c/ce4c8beedc19aceeab0e7bdc6f34394fb158c47c
git.kernel.org/stable/c/f463c4786c... WEB
https://git.kernel.org/stable/c/f463c4786cf27376de7dfc0833a12e924a98f698

Frequently Asked Questions

What is CVE-2026-98096?
CVE-2026-98096 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-2026-98096?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-98096?
CVE-2026-98096 has a CVSS v3.1 base score of 7.4 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H.
What CWE is associated with CVE-2026-98096?
CVE-2026-98096 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98096?
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-qgrh-x7hc-r5h3",
  "modified" : "2026-10-03T12:31:27Z",
  "published" : "2026-09-25T12:31:36Z",
  "aliases" : [ "CVE-2026-98096" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: restore network header before routing and forwarding\n\nipv6_srh_rcv() runs with skb->data at the Segment Routing Header (SRH)\nwhile skb_network_header() points at the IPv6 header.\n\nWhen segments_left > 0, ipv6_srh_rcv() previously restored the skb->data\nposition by pushing sizeof(struct ipv6hdr), assuming the SRH immediately\nfollowed the fixed IPv6 header. If another extension header (such as a\nHop-by-Hop options header) precedes the SRH, skb_network_offset()\nremained negative.\n\nThis led to two problems:\n1. During ip6_route_input(), fib6_rules_early_flow_dissect() invokes\n   __skb_flow_dissect() which passes the negative skb_network_offset()\n   to flow dissection, breaking BPF and C flow dissector logic.\n2. If forwarded via ip6_forward() or redirected via act_mirred, downstream\n   handlers (like sch_fragment() or neighbour output) pass the negative\n   offset as an unsigned length, triggering OOB memcpy or buffer overflows.\n\nFix this by pushing -skb_network_offset(skb) before routing, ensuring\nskb_network_offset(skb) is 0 for route lookup / flow dissection as well as\ndownstream forwarding. On the loopback path, pull skb_transport_offset(skb)\nto restore skb->data to the SRH before looping back.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98096"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3ad7dca5e03bd64c65983a19734337512fd75491"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8f44d4160bcdb3136a9145a4b9c7816382976925"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/975b5b067f525a1b1338c4a3bee1c46545801518"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/97b21ef57dfabbff660a4672c9fef7edfb720f47"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9cfbe2c381ab6d00a08e7a5b6028865adfb4e1bc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/af08f62b5a5a446d6134a92d86771d3d12e0e3da"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ce4c8beedc19aceeab0e7bdc6f34394fb158c47c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f463c4786cf27376de7dfc0833a12e924a98f698"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:39Z"
  }
}