CVE-2026-98036: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-3w55-5pcm-xp58
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Advisory Summary

CVE-2026-98036 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-2026-98036 at a Glance

CVE Identifier CVE-2026-98036
GHSA Identifier GHSA-3w55-5pcm-xp58
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-2026-98036

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-2026-98036, 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: Preserve special fields in recycled rhtab elements rhtab_map_update_elem() initializes special fields after obtaining an element from bpf_mem_cache_alloc(). The allocator can return a fresh, zeroed unit, or recycle one from its RCU-pending lists before the registered destructor has run. A BPF program can retain a map-value pointer after deleting its element and initialize and arm a timer through that pointer. If the deleted unit is recycled, check_and_init_map_value() clears the only pointer to the timer. Neither a later deletion nor rhtab_mem_dtor() can then cancel it, and the callback can run with its key and value pointing into freed memory. Do not reinitialize special fields on insertion. Fresh allocator units are already zeroed. For recycled units, the special fields are ownership state that must remain visible to the eventual destructor. copy_map_value() already skips those fields, matching the non-preallocated hash-map path and the lifecycle established by commit 275c30bcee66 ("bpf: Don't reinit map value in prealloc_lru_pop"). [ kkd: Split out the fix and rewrote the commit log ]

References

NVD — CVE-2026-98036 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98036
git.kernel.org/stable/c/5df46ddcb7... WEB
https://git.kernel.org/stable/c/5df46ddcb7b36878c1b691e9057a0509042a2567
git.kernel.org/stable/c/6a5266b828... WEB
https://git.kernel.org/stable/c/6a5266b8288216b86602ff687d528abfb066dfd8

Frequently Asked Questions

What is CVE-2026-98036?
CVE-2026-98036 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-2026-98036?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98036?
CVE-2026-98036 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98036?
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-3w55-5pcm-xp58",
  "modified" : "2026-09-25T12:31:34Z",
  "published" : "2026-09-25T12:31:34Z",
  "aliases" : [ "CVE-2026-98036" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Preserve special fields in recycled rhtab elements\n\nrhtab_map_update_elem() initializes special fields after obtaining an\nelement from bpf_mem_cache_alloc(). The allocator can return a fresh,\nzeroed unit, or recycle one from its RCU-pending lists before the\nregistered destructor has run.\n\nA BPF program can retain a map-value pointer after deleting its element\nand initialize and arm a timer through that pointer. If the deleted unit\nis recycled, check_and_init_map_value() clears the only pointer to the\ntimer. Neither a later deletion nor rhtab_mem_dtor() can then cancel it,\nand the callback can run with its key and value pointing into freed memory.\n\nDo not reinitialize special fields on insertion. Fresh allocator units are\nalready zeroed. For recycled units, the special fields are ownership state\nthat must remain visible to the eventual destructor. copy_map_value()\nalready skips those fields, matching the non-preallocated hash-map path and\nthe lifecycle established by commit 275c30bcee66 (\"bpf: Don't reinit map\nvalue in prealloc_lru_pop\").\n\n[ kkd: Split out the fix and rewrote the commit log ]",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98036"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5df46ddcb7b36878c1b691e9057a0509042a2567"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6a5266b8288216b86602ff687d528abfb066dfd8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:32Z"
  }
}