CVE-2026-98402: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-ggf3-fm45-ccm2
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Advisory Summary

CVE-2026-98402 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-2026-98402 at a Glance

CVE Identifier CVE-2026-98402
GHSA Identifier GHSA-ggf3-fm45-ccm2
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-2026-98402

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-2026-98402, 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: net: icmp: avoid invalid transport header access in icmp_send tracepoint syzbot reported a WARNING triggered by DEBUG_NET_WARN_ON_ONCE(): WARNING: at skb_transport_header include/linux/skbuff.h:3087 [inline] WARNING: at udp_hdr include/linux/udp.h:23 [inline] WARNING: at do_trace_event_raw_event_icmp_send include/trace/events/icmp.h:30 [inline] WARNING: at trace_event_raw_event_icmp_send+0x48c/0x6ec include/trace/events/icmp.h:11 Call trace: skb_transport_header include/linux/skbuff.h:3087 [inline] udp_hdr include/linux/udp.h:23 [inline] do_trace_event_raw_event_icmp_send include/trace/events/icmp.h:30 [inline] trace_event_raw_event_icmp_send+0x48c/0x6ec include/trace/events/icmp.h:11 __traceiter_icmp_send include/trace/events/icmp.h:11 [inline] __do_trace_icmp_send include/trace/events/icmp.h:11 [inline] trace_icmp_send+0x320/0x49c include/trace/events/icmp.h:11 __icmp_send+0xcfc/0x11d8 net/ipv4/icmp.c:1013 ipv4_send_dest_unreach net/ipv4/route.c:1280 [inline] ipv4_link_failure+0x57c/0x8dc net/ipv4/route.c:1287 dst_link_failure include/net/dst.h:438 [inline] vti_tunnel_xmit+0xe40/0x17a4 net/ipv4/ip_vti.c:307 TP_fast_assign() unconditionally calls udp_hdr(skb) before checking whether the packet is UDP. Furthermore, __icmp_send() can be invoked from paths (e.g., link failures, ARP errors, forwarding, AF_PACKET) where skb->transport_header was never initialized (~0U). Under CONFIG_DEBUG_NET=y, calling skb_transport_header(skb) triggers DEBUG_NET_WARN_ON_ONCE(!skb_transport_header_was_set(skb)). Fix this by: 1. Only parsing transport info when iph->protocol == IPPROTO_UDP. 2. Using skb_header_pointer() at skb_network_offset(skb) + (iph->ihl << 2) to safely fetch the UDP header without assuming transport_header is set.

References

NVD — CVE-2026-98402 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98402
git.kernel.org/stable/c/04c0d35bac... WEB
https://git.kernel.org/stable/c/04c0d35bac5122b533672a6775851dfae84e265e
git.kernel.org/stable/c/2b32f8c356... WEB
https://git.kernel.org/stable/c/2b32f8c3560905582fb12ed68315a6e606367a6a
git.kernel.org/stable/c/7fcc2fe39f... WEB
https://git.kernel.org/stable/c/7fcc2fe39fed1cb98a7374a113ff3800e8f9af80
git.kernel.org/stable/c/99654b651c... WEB
https://git.kernel.org/stable/c/99654b651c6d5fe865798a2adb859767905f9278
git.kernel.org/stable/c/b972b5e616... WEB
https://git.kernel.org/stable/c/b972b5e6168dc5d1e13297b1f37f71d6b21cc0f1
git.kernel.org/stable/c/ec6d4612d1... WEB
https://git.kernel.org/stable/c/ec6d4612d1c170e1cef1fe55526471da1e81e777

Frequently Asked Questions

What is CVE-2026-98402?
CVE-2026-98402 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-2026-98402?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98402?
CVE-2026-98402 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98402?
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-ggf3-fm45-ccm2",
  "modified" : "2026-10-14T15:32:20Z",
  "published" : "2026-10-14T15:32:20Z",
  "aliases" : [ "CVE-2026-98402" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: icmp: avoid invalid transport header access in icmp_send tracepoint\n\nsyzbot reported a WARNING triggered by DEBUG_NET_WARN_ON_ONCE():\n\n WARNING: at skb_transport_header include/linux/skbuff.h:3087 [inline]\n WARNING: at udp_hdr include/linux/udp.h:23 [inline]\n WARNING: at do_trace_event_raw_event_icmp_send include/trace/events/icmp.h:30 [inline]\n WARNING: at trace_event_raw_event_icmp_send+0x48c/0x6ec include/trace/events/icmp.h:11\n Call trace:\n  skb_transport_header include/linux/skbuff.h:3087 [inline]\n  udp_hdr include/linux/udp.h:23 [inline]\n  do_trace_event_raw_event_icmp_send include/trace/events/icmp.h:30 [inline]\n  trace_event_raw_event_icmp_send+0x48c/0x6ec include/trace/events/icmp.h:11\n  __traceiter_icmp_send include/trace/events/icmp.h:11 [inline]\n  __do_trace_icmp_send include/trace/events/icmp.h:11 [inline]\n  trace_icmp_send+0x320/0x49c include/trace/events/icmp.h:11\n  __icmp_send+0xcfc/0x11d8 net/ipv4/icmp.c:1013\n  ipv4_send_dest_unreach net/ipv4/route.c:1280 [inline]\n  ipv4_link_failure+0x57c/0x8dc net/ipv4/route.c:1287\n  dst_link_failure include/net/dst.h:438 [inline]\n  vti_tunnel_xmit+0xe40/0x17a4 net/ipv4/ip_vti.c:307\n\nTP_fast_assign() unconditionally calls udp_hdr(skb) before checking\nwhether the packet is UDP. Furthermore, __icmp_send() can be invoked\nfrom paths (e.g., link failures, ARP errors, forwarding, AF_PACKET)\nwhere skb->transport_header was never initialized (~0U).\n\nUnder CONFIG_DEBUG_NET=y, calling skb_transport_header(skb) triggers\nDEBUG_NET_WARN_ON_ONCE(!skb_transport_header_was_set(skb)).\n\nFix this by:\n1. Only parsing transport info when iph->protocol == IPPROTO_UDP.\n2. Using skb_header_pointer() at skb_network_offset(skb) + (iph->ihl << 2)\n   to safely fetch the UDP header without assuming transport_header is set.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98402"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/04c0d35bac5122b533672a6775851dfae84e265e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2b32f8c3560905582fb12ed68315a6e606367a6a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7fcc2fe39fed1cb98a7374a113ff3800e8f9af80"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/99654b651c6d5fe865798a2adb859767905f9278"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b972b5e6168dc5d1e13297b1f37f71d6b21cc0f1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ec6d4612d1c170e1cef1fe55526471da1e81e777"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-14T14:17:51Z"
  }
}