CVE-2026-98186: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-vmvq-5qrr-gvg2
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Advisory Summary

CVE-2026-98186 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-2026-98186 at a Glance

CVE Identifier CVE-2026-98186
GHSA Identifier GHSA-vmvq-5qrr-gvg2
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-2026-98186

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-2026-98186, 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: wifi: mwifiex: bound the pairwise-cipher OUI walk to the IE length mwifiex_search_oui_in_ie() reads a pairwise-cipher (PTK) count from a beacon/probe-response RSN or WPA information element and then walks that many 4-byte OUIs, comparing each with memcmp(). The count comes straight from the (attacker-supplied) IE and is never checked against the element's own length, and the callers admit the element on element_id alone (has_ieee_hdr() / has_vendor_hdr(), no length check). A crafted RSN/WPA IE with a large pairwise count therefore makes the walk read up to 255 * 4 bytes past the element -- an out-of-bounds read of the kmemdup()'d beacon buffer, reachable from any AP whose beacon/probe response is processed during scan-result parsing. Pass the number of IE bytes available at the OUI list and bound the walk to the element. Keep the length signed and reject a negative value before any unsigned arithmetic, so a small or zero IE length cannot underflow to a large size_t and defeat the bound. Found by 0sec automated security-research tooling (https://0sec.ai).

References

NVD — CVE-2026-98186 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98186
git.kernel.org/stable/c/2402c9e264... WEB
https://git.kernel.org/stable/c/2402c9e2644b7e10c7aaaf87bf12743d7e363559
git.kernel.org/stable/c/46cda9d42f... WEB
https://git.kernel.org/stable/c/46cda9d42f0d6ec3057d878ddb1f38c0ab9f51df
git.kernel.org/stable/c/54a9cc5bd7... WEB
https://git.kernel.org/stable/c/54a9cc5bd70b0d77a5069d4c46998c679a10c857
git.kernel.org/stable/c/58767b41f8... WEB
https://git.kernel.org/stable/c/58767b41f87244eebaa5a475b9d276c83b89b933
git.kernel.org/stable/c/77e642af7f... WEB
https://git.kernel.org/stable/c/77e642af7f2f6029e12a35c847c56cbd0466e799
git.kernel.org/stable/c/8bbef2b1eb... WEB
https://git.kernel.org/stable/c/8bbef2b1ebfbadc0b9c37bbbf9c9e26fe2e41960
git.kernel.org/stable/c/982b8fcdbb... WEB
https://git.kernel.org/stable/c/982b8fcdbb28f63bbbf02f0822c0bbda12ec27ed
git.kernel.org/stable/c/e667aee1c1... WEB
https://git.kernel.org/stable/c/e667aee1c192d67d27c803007bfa9c6e0873e959

Frequently Asked Questions

What is CVE-2026-98186?
CVE-2026-98186 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-2026-98186?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98186?
CVE-2026-98186 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98186?
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-vmvq-5qrr-gvg2",
  "modified" : "2026-10-06T09:31:30Z",
  "published" : "2026-10-06T09:31:29Z",
  "aliases" : [ "CVE-2026-98186" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: bound the pairwise-cipher OUI walk to the IE length\n\nmwifiex_search_oui_in_ie() reads a pairwise-cipher (PTK) count from a\nbeacon/probe-response RSN or WPA information element and then walks that\nmany 4-byte OUIs, comparing each with memcmp(). The count comes straight\nfrom the (attacker-supplied) IE and is never checked against the\nelement's own length, and the callers admit the element on element_id\nalone (has_ieee_hdr() / has_vendor_hdr(), no length check). A crafted\nRSN/WPA IE with a large pairwise count therefore makes the walk read up\nto 255 * 4 bytes past the element -- an out-of-bounds read of the\nkmemdup()'d beacon buffer, reachable from any AP whose beacon/probe\nresponse is processed during scan-result parsing.\n\nPass the number of IE bytes available at the OUI list and bound the walk\nto the element. Keep the length signed and reject a negative value\nbefore any unsigned arithmetic, so a small or zero IE length cannot\nunderflow to a large size_t and defeat the bound.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98186"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2402c9e2644b7e10c7aaaf87bf12743d7e363559"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/46cda9d42f0d6ec3057d878ddb1f38c0ab9f51df"
  }, {
    "type" : "WEB",
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    "type" : "WEB",
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e667aee1c192d67d27c803007bfa9c6e0873e959"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-06T09:18:03Z"
  }
}