CVE-2026-98063: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-h366-qqqg-44v8
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Advisory Summary

CVE-2026-98063 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-2026-98063 at a Glance

CVE Identifier CVE-2026-98063
GHSA Identifier GHSA-h366-qqqg-44v8
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-2026-98063

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-2026-98063, 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: bpf: Fix NULL-ptr-deref in btf_var_show() btf_var_show() calls btf_type_id_resolve() unconditionally, which dereferences btf->resolved_ids. That is NULL for a base BTF - e.g. the vmlinux BTF that bpf_snprintf_btf() renders against - since base BTF is not resolved during parsing. btf_modifier_show() guards this with 'if (btf->resolved_ids)', but btf_var_show() does not. A BPF program that passes the type_id of a BTF_KIND_VAR from the vmlinux BTF to bpf_snprintf_btf() thus NULL-derefs: KASAN: probably user-memory-access in range [0x46638-0x4663f] RIP: 0010:btf_var_show (kernel/bpf/btf.c:2929) Call Trace: <TASK> btf_type_show (kernel/bpf/btf.c:8259) btf_type_snprintf_show (kernel/bpf/btf.c:8329) bpf_snprintf_btf (kernel/trace/bpf_trace.c:1047) bpf_prog_test_run_raw_tp (net/bpf/test_run.c:829) __sys_bpf (kernel/bpf/syscall.c:4804) do_syscall_64 (arch/x86/entry/syscall_64.c:84) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) </TASK> Resolve the var's type directly with btf_type_skip_modifiers() when resolved_ids is NULL, mirroring btf_modifier_show().

References

NVD — CVE-2026-98063 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98063
git.kernel.org/stable/c/5403a383f5... WEB
https://git.kernel.org/stable/c/5403a383f52fc0905703b488f7c3db4b2447dc58
git.kernel.org/stable/c/5756450c9a... WEB
https://git.kernel.org/stable/c/5756450c9a702da0efb4a993d0a6766b965736f3
git.kernel.org/stable/c/aec0a9c157... WEB
https://git.kernel.org/stable/c/aec0a9c1579eb9edf534960be592d09481bd7ac3
git.kernel.org/stable/c/ca086264e9... WEB
https://git.kernel.org/stable/c/ca086264e98108b44fdf53971033811a48defe2b
git.kernel.org/stable/c/e0d6a06171... WEB
https://git.kernel.org/stable/c/e0d6a06171633d3ee3f7a39b57e5c845fb2b79f2
git.kernel.org/stable/c/e472ae0d97... WEB
https://git.kernel.org/stable/c/e472ae0d97865e2021ee668a13eab64013aebf23
git.kernel.org/stable/c/e83fcbe3b5... WEB
https://git.kernel.org/stable/c/e83fcbe3b5d4a1ffb0569bb7c280358065c6017a
git.kernel.org/stable/c/ea383b3ea5... WEB
https://git.kernel.org/stable/c/ea383b3ea56979ce54c8aa88e6ec67164986c401

Frequently Asked Questions

What is CVE-2026-98063?
CVE-2026-98063 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-2026-98063?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98063?
CVE-2026-98063 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98063?
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-h366-qqqg-44v8",
  "modified" : "2026-10-03T12:31:25Z",
  "published" : "2026-09-25T12:31:35Z",
  "aliases" : [ "CVE-2026-98063" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NULL-ptr-deref in btf_var_show()\n\nbtf_var_show() calls btf_type_id_resolve() unconditionally, which\ndereferences btf->resolved_ids. That is NULL for a base BTF - e.g. the\nvmlinux BTF that bpf_snprintf_btf() renders against - since base BTF is\nnot resolved during parsing. btf_modifier_show() guards this with\n'if (btf->resolved_ids)', but btf_var_show() does not.\n\nA BPF program that passes the type_id of a BTF_KIND_VAR from the vmlinux\nBTF to bpf_snprintf_btf() thus NULL-derefs:\n\nKASAN: probably user-memory-access in range [0x46638-0x4663f]\nRIP: 0010:btf_var_show (kernel/bpf/btf.c:2929)\nCall Trace:\n <TASK>\n btf_type_show (kernel/bpf/btf.c:8259)\n btf_type_snprintf_show (kernel/bpf/btf.c:8329)\n bpf_snprintf_btf (kernel/trace/bpf_trace.c:1047)\n bpf_prog_test_run_raw_tp (net/bpf/test_run.c:829)\n __sys_bpf (kernel/bpf/syscall.c:4804)\n do_syscall_64 (arch/x86/entry/syscall_64.c:84)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)\n </TASK>\n\nResolve the var's type directly with btf_type_skip_modifiers() when\nresolved_ids is NULL, mirroring btf_modifier_show().",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5756450c9a702da0efb4a993d0a6766b965736f3"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/aec0a9c1579eb9edf534960be592d09481bd7ac3"
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    "url" : "https://git.kernel.org/stable/c/e83fcbe3b5d4a1ffb0569bb7c280358065c6017a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ea383b3ea56979ce54c8aa88e6ec67164986c401"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:35Z"
  }
}