CVE-2026-68209: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-93x6-mg2w-rrg6
Share
CVSS 7.8
Published
Advisory Summary

CVE-2026-68209 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-68209 at a Glance

CVE Identifier CVE-2026-68209
GHSA Identifier GHSA-93x6-mg2w-rrg6
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-68209

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-2026-68209, 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: media: sun4i-csi: Return queued buffers on start_streaming() failure The vb2 framework hands buffers to the driver via buf_queue() before calling start_streaming(). If start_streaming() returns an error without first returning those buffers via vb2_buffer_done(), vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued buffers leak. sun4i_csi_start_streaming() returned -EINVAL when no matching CSI format could be found, before any setup (scratch buffer allocation, pipeline start) had been performed. The remaining error paths already converge on the err_clear_dma_queue label, which calls return_all_buffers(..., VB2_BUF_STATE_QUEUED) under csi->qlock. Jump to that label directly: the intermediate err_disable_device / err_disable_pipeline / err_free_scratch_buffer labels are skipped, which is correct because nothing they would undo has happened yet. This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo: Return queued buffers on start_streaming() failure").

References

NVD — CVE-2026-68209 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68209
git.kernel.org/stable/c/29fce7bcb3... WEB
https://git.kernel.org/stable/c/29fce7bcb3b959f6d4fdcdff7d26330152fdf98d
git.kernel.org/stable/c/3c0bd793b0... WEB
https://git.kernel.org/stable/c/3c0bd793b0083fd4639ba7f60d1e7db8c8ac459a
git.kernel.org/stable/c/4872161e6f... WEB
https://git.kernel.org/stable/c/4872161e6fbe4e1783daea8bff79caddfae0fb82
git.kernel.org/stable/c/668face37f... WEB
https://git.kernel.org/stable/c/668face37fdb6b6900645dc8777195498541c9a7
git.kernel.org/stable/c/7c2c30e282... WEB
https://git.kernel.org/stable/c/7c2c30e282745a83d332c3cf92d1c0bcc491ac54
git.kernel.org/stable/c/a8abecc638... WEB
https://git.kernel.org/stable/c/a8abecc638a7feb20b78fabd563b05e30c071331
git.kernel.org/stable/c/b5184b3f0e... WEB
https://git.kernel.org/stable/c/b5184b3f0e9d4cc47059ba1138c9a73d43d2493f
git.kernel.org/stable/c/bbba3e260a... WEB
https://git.kernel.org/stable/c/bbba3e260a62810a717b4442a3bb96d0ec0f6309

Frequently Asked Questions

What is CVE-2026-68209?
CVE-2026-68209 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-2026-68209?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-68209?
CVE-2026-68209 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-68209?
CVE-2026-68209 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-68209?
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-93x6-mg2w-rrg6",
  "modified" : "2026-08-19T18:32:11Z",
  "published" : "2026-08-10T15:33:41Z",
  "aliases" : [ "CVE-2026-68209" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: sun4i-csi: Return queued buffers on start_streaming() failure\n\nThe vb2 framework hands buffers to the driver via buf_queue() before\ncalling start_streaming().  If start_streaming() returns an error\nwithout first returning those buffers via vb2_buffer_done(),\nvb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued\nbuffers leak.\n\nsun4i_csi_start_streaming() returned -EINVAL when no matching CSI\nformat could be found, before any setup (scratch buffer allocation,\npipeline start) had been performed.  The remaining error paths already\nconverge on the err_clear_dma_queue label, which calls\nreturn_all_buffers(..., VB2_BUF_STATE_QUEUED) under csi->qlock.  Jump\nto that label directly: the intermediate err_disable_device /\nerr_disable_pipeline / err_free_scratch_buffer labels are skipped,\nwhich is correct because nothing they would undo has happened yet.\n\nThis mirrors the uvcvideo fix in commit 4cf3b6fd54eb (\"media: uvcvideo:\nReturn queued buffers on start_streaming() failure\").",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68209"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/29fce7bcb3b959f6d4fdcdff7d26330152fdf98d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3c0bd793b0083fd4639ba7f60d1e7db8c8ac459a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4872161e6fbe4e1783daea8bff79caddfae0fb82"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/668face37fdb6b6900645dc8777195498541c9a7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7c2c30e282745a83d332c3cf92d1c0bcc491ac54"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a8abecc638a7feb20b78fabd563b05e30c071331"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b5184b3f0e9d4cc47059ba1138c9a73d43d2493f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bbba3e260a62810a717b4442a3bb96d0ec0f6309"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:08Z"
  }
}