CVE-2026-93212: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-8w8j-gj8p-wm2m
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Advisory Summary

CVE-2026-93212 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-2026-93212 at a Glance

CVE Identifier CVE-2026-93212
GHSA Identifier GHSA-8w8j-gj8p-wm2m
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-2026-93212

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-2026-93212, 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: guard nfsd_serv deref in nfsd_file_net_dispose nfsd_file_net_dispose() is the consumer side of l->freeme: the nfsd service thread loop calls it to drain entries that the filecache garbage collector and shrinker append via nfsd_file_dispose_list_delayed(). During per-net teardown, nn->nfsd_serv is cleared before the filecache laundrette is shut down, so the service thread can still run a dispose pass that finds more than eight entries on l->freeme and dereferences a NULL svc_serv: nfsd service thread loop nfsd_file_net_dispose(nn) if (!list_empty(&l->freeme)) { ... svc_wake_up(nn->nfsd_serv); /* nn->nfsd_serv == NULL */ } The sibling helper nfsd_file_dispose_list_delayed() already documents this ordering and caches nn->nfsd_serv into a local before testing it for NULL. nfsd_file_net_dispose() was introduced with the same raw svc_wake_up(nn->nfsd_serv) call and never picked up the guard. Fix by loading nn->nfsd_serv into a local svc_serv pointer and only calling svc_wake_up() when it is non-NULL, matching the pattern in nfsd_file_dispose_list_delayed().

References

NVD — CVE-2026-93212 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93212
git.kernel.org/stable/c/59baf45a06... WEB
https://git.kernel.org/stable/c/59baf45a06435194005fc5fa9a42d89f77a30432
git.kernel.org/stable/c/766170b4fd... WEB
https://git.kernel.org/stable/c/766170b4fd2daaf5c4d6735560101474e18edab6
git.kernel.org/stable/c/9f1ddfc8cb... WEB
https://git.kernel.org/stable/c/9f1ddfc8cb9076592401a611eb3a44d36186d014
git.kernel.org/stable/c/f4776c1c4b... WEB
https://git.kernel.org/stable/c/f4776c1c4b38fbc459420321c8ece87d0f7f95fb

Frequently Asked Questions

What is CVE-2026-93212?
CVE-2026-93212 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-2026-93212?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-93212?
CVE-2026-93212 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93212?
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-8w8j-gj8p-wm2m",
  "modified" : "2026-09-24T18:31:22Z",
  "published" : "2026-09-24T18:31:22Z",
  "aliases" : [ "CVE-2026-93212" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: guard nfsd_serv deref in nfsd_file_net_dispose\n\nnfsd_file_net_dispose() is the consumer side of l->freeme: the nfsd\nservice thread loop calls it to drain entries that the filecache\ngarbage collector and shrinker append via\nnfsd_file_dispose_list_delayed().  During per-net teardown,\nnn->nfsd_serv is cleared before the filecache laundrette is shut\ndown, so the service thread can still run a dispose pass that finds\nmore than eight entries on l->freeme and dereferences a NULL\nsvc_serv:\n\n    nfsd service thread loop\n      nfsd_file_net_dispose(nn)\n        if (!list_empty(&l->freeme)) {\n            ...\n            svc_wake_up(nn->nfsd_serv);   /* nn->nfsd_serv == NULL */\n        }\n\nThe sibling helper nfsd_file_dispose_list_delayed() already documents\nthis ordering and caches nn->nfsd_serv into a local before testing it\nfor NULL.  nfsd_file_net_dispose() was introduced with the same raw\nsvc_wake_up(nn->nfsd_serv) call and never picked up the guard.\n\nFix by loading nn->nfsd_serv into a local svc_serv pointer and only\ncalling svc_wake_up() when it is non-NULL, matching the pattern in\nnfsd_file_dispose_list_delayed().",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93212"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/59baf45a06435194005fc5fa9a42d89f77a30432"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/766170b4fd2daaf5c4d6735560101474e18edab6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9f1ddfc8cb9076592401a611eb3a44d36186d014"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f4776c1c4b38fbc459420321c8ece87d0f7f95fb"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T16:17:16Z"
  }
}