CVE-2026-93282: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-7xq8-4f3j-v3g7
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CVSS 8.1
Published
Advisory Summary

CVE-2026-93282 is a HIGH (CVSS 8.1) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-93282 at a Glance

CVE Identifier CVE-2026-93282
GHSA Identifier GHSA-7xq8-4f3j-v3g7
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.1

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:N).

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 None (A:N)

How to Fix CVE-2026-93282

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-2026-93282, 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: fix maximum allowed access checks The DACL permission check looks for an ACE matching the current user and falls back to the Everyone ACE. It does not consider an Authenticated Users ACE, even though an authenticated session is a member of that well-known group. As a result, opening a file whose access is granted through S-1-5-11 can incorrectly fail with STATUS_ACCESS_DENIED. Treat an Authenticated Users ACE as a fallback entry alongside Everyone. The maximal access calculation also combines access masks from every ACE, regardless of whether its SID applies to the current user. This can grant rights belonging to an unrelated principal. Process only ACEs applying to the user, Everyone, or Authenticated Users, and accumulate allowed and denied masks in ACL order. Preserve explicitly requested access bits so they are validated against the resulting maximal mask. When ACCESS_SYSTEM_SECURITY is denied, report STATUS_PRIVILEGE_NOT_HELD instead of the generic STATUS_ACCESS_DENIED. Access to the system ACL requires a security privilege that ksmbd does not grant. For regular files, include FILE_EXECUTE in maximal access when the client requested GENERIC_EXECUTE and the DACL grants the complete file-read set. Keep a direct FILE_EXECUTE request subject to the explicit DACL bit. This matches the POSIX file ACL mapping without broadening specific execute requests. Do not replace rights from an applicable NT ACE with a POSIX ACL entry. The POSIX ACL is only a fallback when no user, Everyone, or Authenticated Users ACE applies; otherwise it can incorrectly broaden the stored DACL. This fixes smb2.maximum_allowed.maximum_allowed.

References

NVD — CVE-2026-93282 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93282
git.kernel.org/stable/c/28289d880e... WEB
https://git.kernel.org/stable/c/28289d880e6d11ae7ac77b81af3312453febf939
git.kernel.org/stable/c/35d5c59fe6... WEB
https://git.kernel.org/stable/c/35d5c59fe6b1d9fe43fb14eb384f69ee1a120f9c
git.kernel.org/stable/c/cc2f133e80... WEB
https://git.kernel.org/stable/c/cc2f133e80eb2c4a04bfa77a2f207749fe2f516a

Frequently Asked Questions

What is CVE-2026-93282?
CVE-2026-93282 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-2026-93282?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-93282?
CVE-2026-93282 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-93282?
CVE-2026-93282 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93282?
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-7xq8-4f3j-v3g7",
  "modified" : "2026-10-15T12:30:53Z",
  "published" : "2026-09-24T18:31:25Z",
  "aliases" : [ "CVE-2026-93282" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix maximum allowed access checks\n\nThe DACL permission check looks for an ACE matching the current user and\nfalls back to the Everyone ACE. It does not consider an Authenticated\nUsers ACE, even though an authenticated session is a member of that\nwell-known group.\n\nAs a result, opening a file whose access is granted through S-1-5-11 can\nincorrectly fail with STATUS_ACCESS_DENIED. Treat an Authenticated Users\nACE as a fallback entry alongside Everyone.\n\nThe maximal access calculation also combines access masks from every ACE,\nregardless of whether its SID applies to the current user. This can grant\nrights belonging to an unrelated principal. Process only ACEs applying to\nthe user, Everyone, or Authenticated Users, and accumulate allowed and\ndenied masks in ACL order. Preserve explicitly requested access bits so\nthey are validated against the resulting maximal mask.\n\nWhen ACCESS_SYSTEM_SECURITY is denied, report STATUS_PRIVILEGE_NOT_HELD\ninstead of the generic STATUS_ACCESS_DENIED. Access to the system ACL\nrequires a security privilege that ksmbd does not grant.\n\nFor regular files, include FILE_EXECUTE in maximal access when the client\nrequested GENERIC_EXECUTE and the DACL grants the complete file-read set.\nKeep a direct FILE_EXECUTE request subject to the explicit DACL bit. This\nmatches the POSIX file ACL mapping without broadening specific execute\nrequests.\n\nDo not replace rights from an applicable NT ACE with a POSIX ACL entry.\nThe POSIX ACL is only a fallback when no user, Everyone, or Authenticated\nUsers ACE applies; otherwise it can incorrectly broaden the stored DACL.\n\nThis fixes smb2.maximum_allowed.maximum_allowed.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93282"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/28289d880e6d11ae7ac77b81af3312453febf939"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/35d5c59fe6b1d9fe43fb14eb384f69ee1a120f9c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cc2f133e80eb2c4a04bfa77a2f207749fe2f516a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T16:17:25Z"
  }
}