CVE-2026-68097: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-m2gq-x88q-682f
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CVSS 8.8
Published
Advisory Summary

CVE-2026-68097 is a HIGH (CVSS 8.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-68097 at a Glance

CVE Identifier CVE-2026-68097
GHSA Identifier GHSA-m2gq-x88q-682f
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

Attack Vector Network (AV:N)
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-2026-68097

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-2026-68097, 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: ksmbd: validate ACE size against SID sub-authorities set_ntacl_dacl() validates sid.num_subauth before copying an ACE, but does not verify that the declared ACE size contains all sub-authorities described by that field. An undersized ACE can therefore be copied and later make the POSIX ACL deduplication walk inspect data beyond the copied ACE boundary. The existing initial bound check is also too small. It only ensures that the ACE size field is accessible before set_ntacl_dacl() reads sid.num_subauth farther into the input buffer. Require enough input for the fixed SID header before accessing num_subauth, reject ACEs smaller than that header, and skip ACEs whose declared size cannot contain the complete SID. This makes the validation consistent with the other ACE walk paths.

References

NVD — CVE-2026-68097 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68097
git.kernel.org/stable/c/337022d9df... WEB
https://git.kernel.org/stable/c/337022d9dfac441c3b35e4455a51aa981996e02e
git.kernel.org/stable/c/5152c6d49e... WEB
https://git.kernel.org/stable/c/5152c6d49e3fd4e9f2e857c57527aead752f1f87
git.kernel.org/stable/c/5a2d9fe0e8... WEB
https://git.kernel.org/stable/c/5a2d9fe0e87c71baa0aaa1cfc1361892fcd1ece0
git.kernel.org/stable/c/61fd355919... WEB
https://git.kernel.org/stable/c/61fd3559199f7fa693dcbff35e59477e24af041a
git.kernel.org/stable/c/62d80d7c2d... WEB
https://git.kernel.org/stable/c/62d80d7c2d9428085e7458ad4c06ca8c0984039b
git.kernel.org/stable/c/b7cb5bf085... WEB
https://git.kernel.org/stable/c/b7cb5bf0855470799f12da825de91e48951b3876

Frequently Asked Questions

What is CVE-2026-68097?
CVE-2026-68097 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-2026-68097?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-68097?
CVE-2026-68097 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-68097?
CVE-2026-68097 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-68097?
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-m2gq-x88q-682f",
  "modified" : "2026-10-03T12:31:01Z",
  "published" : "2026-08-10T15:33:35Z",
  "aliases" : [ "CVE-2026-68097" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: validate ACE size against SID sub-authorities\n\nset_ntacl_dacl() validates sid.num_subauth before copying an ACE, but\ndoes not verify that the declared ACE size contains all sub-authorities\ndescribed by that field. An undersized ACE can therefore be copied\nand later make the POSIX ACL deduplication walk inspect data beyond\nthe copied ACE boundary.\n\nThe existing initial bound check is also too small. It only ensures\nthat the ACE size field is accessible before set_ntacl_dacl() reads\nsid.num_subauth farther into the input buffer.\n\nRequire enough input for the fixed SID header before accessing\nnum_subauth, reject ACEs smaller than that header, and skip ACEs\nwhose declared size cannot contain the complete SID. This makes the\nvalidation consistent with the other ACE walk paths.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/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-2026-68097"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/337022d9dfac441c3b35e4455a51aa981996e02e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5152c6d49e3fd4e9f2e857c57527aead752f1f87"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5a2d9fe0e87c71baa0aaa1cfc1361892fcd1ece0"
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    "url" : "https://git.kernel.org/stable/c/62d80d7c2d9428085e7458ad4c06ca8c0984039b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b7cb5bf0855470799f12da825de91e48951b3876"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:19:54Z"
  }
}