CVE-2026-89693: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-hqc5-5f52-xmgw
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Advisory Summary

CVE-2026-89693 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-2026-89693 at a Glance

CVE Identifier CVE-2026-89693
GHSA Identifier GHSA-hqc5-5f52-xmgw
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-2026-89693

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-2026-89693, 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: nfsd: check nfsd4_acl_to_attr() return value in nfsd4_create() nfsd4_create() stores the return value of nfsd4_acl_to_attr() in status, but the switch(create->cr_type) block unconditionally overwrites it in every branch. ACL translation errors are silently discarded, and the CREATE proceeds without the requested ACL. Add an early exit check after nfsd4_acl_to_attr(), matching the pattern already used in nfsd4_setattr(). [ cel: prefer NFS4ERR_BADTYPE over NFS4ERR_ATTRNOTSUPP ]

References

NVD — CVE-2026-89693 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89693
git.kernel.org/stable/c/26877d3a09... WEB
https://git.kernel.org/stable/c/26877d3a09afb3838a053867a655ca30c46a1f81
git.kernel.org/stable/c/2c79127321... WEB
https://git.kernel.org/stable/c/2c7912732184773dbd371a411da87af1cc080b86
git.kernel.org/stable/c/430ed49a16... WEB
https://git.kernel.org/stable/c/430ed49a16cf9ca249d0fb51490582090bc4848b
git.kernel.org/stable/c/80cebb0e8a... WEB
https://git.kernel.org/stable/c/80cebb0e8a8d1e758f0d671f5e047279c5c3e528

Frequently Asked Questions

What is CVE-2026-89693?
CVE-2026-89693 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-2026-89693?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89693?
CVE-2026-89693 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89693?
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-hqc5-5f52-xmgw",
  "modified" : "2026-09-21T15:31:36Z",
  "published" : "2026-09-11T21:31:37Z",
  "aliases" : [ "CVE-2026-89693" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: check nfsd4_acl_to_attr() return value in nfsd4_create()\n\nnfsd4_create() stores the return value of nfsd4_acl_to_attr() in\nstatus, but the switch(create->cr_type) block unconditionally\noverwrites it in every branch. ACL translation errors are silently\ndiscarded, and the CREATE proceeds without the requested ACL.\n\nAdd an early exit check after nfsd4_acl_to_attr(), matching the\npattern already used in nfsd4_setattr().\n\n[ cel: prefer NFS4ERR_BADTYPE over NFS4ERR_ATTRNOTSUPP ]",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89693"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/26877d3a09afb3838a053867a655ca30c46a1f81"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2c7912732184773dbd371a411da87af1cc080b86"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/430ed49a16cf9ca249d0fb51490582090bc4848b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/80cebb0e8a8d1e758f0d671f5e047279c5c3e528"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:56Z"
  }
}