CVE-2026-68339: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-mvcc-3q4w-wxx6
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Advisory Summary

CVE-2026-68339 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-2026-68339 at a Glance

CVE Identifier CVE-2026-68339
GHSA Identifier GHSA-mvcc-3q4w-wxx6
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-2026-68339

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-2026-68339, 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: Bluetooth: btusb: validate Realtek vendor event length btusb_recv_event_realtek() reads the event code at data[0] and the Realtek subevent code at data[2] before deciding whether to consume a vendor event as a coredump. For example, the two-byte event ff 00 contains a complete vendor-event header declaring zero parameters. The old classifier still reads a nonexistent third byte and can misclassify the event as a coredump if the adjacent byte is 0x34. Require the HCI event header and first parameter to be present before inspecting the Realtek subevent code. Short events continue through the normal HCI receive path, which owns their protocol validation.

References

NVD — CVE-2026-68339 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68339
git.kernel.org/stable/c/24b0758193... WEB
https://git.kernel.org/stable/c/24b0758193d70da47ef8b979153d2a181dbdf34e
git.kernel.org/stable/c/400267bab0... WEB
https://git.kernel.org/stable/c/400267bab0f4076088e163e58cad2bb41c3cf5e7
git.kernel.org/stable/c/8881daaafa... WEB
https://git.kernel.org/stable/c/8881daaafadbe7fb2b7341d16a3949114409c90c
git.kernel.org/stable/c/8de58bfa26... WEB
https://git.kernel.org/stable/c/8de58bfa26e028f99271dde5a92107cd07f5e063
git.kernel.org/stable/c/df541cd485... WEB
https://git.kernel.org/stable/c/df541cd485ff80a5ddc579d99687bc7506df9851

Frequently Asked Questions

What is CVE-2026-68339?
CVE-2026-68339 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-2026-68339?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-68339?
CVE-2026-68339 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-68339?
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-mvcc-3q4w-wxx6",
  "modified" : "2026-08-10T15:33:47Z",
  "published" : "2026-08-10T15:33:47Z",
  "aliases" : [ "CVE-2026-68339" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: validate Realtek vendor event length\n\nbtusb_recv_event_realtek() reads the event code at data[0] and the Realtek\nsubevent code at data[2] before deciding whether to consume a vendor event\nas a coredump.\n\nFor example, the two-byte event ff 00 contains a complete vendor-event\nheader declaring zero parameters. The old classifier still reads a\nnonexistent third byte and can misclassify the event as a coredump if the\nadjacent byte is 0x34.\n\nRequire the HCI event header and first parameter to be present before\ninspecting the Realtek subevent code. Short events continue through the\nnormal HCI receive path, which owns their protocol validation.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68339"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/24b0758193d70da47ef8b979153d2a181dbdf34e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/400267bab0f4076088e163e58cad2bb41c3cf5e7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8881daaafadbe7fb2b7341d16a3949114409c90c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8de58bfa26e028f99271dde5a92107cd07f5e063"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/df541cd485ff80a5ddc579d99687bc7506df9851"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:24Z"
  }
}