CVE-2026-93121: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-vg86-rjrh-q8jw
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CVSS 7.0
Published
Advisory Summary

CVE-2026-93121 is a HIGH (CVSS 7.0) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-93121 at a Glance

CVE Identifier CVE-2026-93121
GHSA Identifier GHSA-vg86-rjrh-q8jw
Severity HIGH
CVSS v3.1 Base Score 7.0
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.0

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

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
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-2026-93121

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-2026-93121, 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: usb: gadget: f_fs: Fix fence cleanup in ffs_dmabuf_transfer() error paths The error paths for endpoint-disabled (ESHUTDOWN) and request-allocation failure (ENOMEM) in ffs_dmabuf_transfer() jump to err_fence_put which calls dma_fence_put() on the fence. However, at that point the fence has only been kmalloc'd — dma_fence_init() has not been called yet, so the refcount and the fence ops are uninitialized. Calling dma_fence_put() on such an object leads to undefined behavior. Use kfree() instead, since the fence is just a plain allocation at this stage, and rename the label to err_fence_free to reflect the actual cleanup action.

References

NVD — CVE-2026-93121 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93121
git.kernel.org/stable/c/58952c83df... WEB
https://git.kernel.org/stable/c/58952c83dfe6ea3294a74734d2d1018c1120779a
git.kernel.org/stable/c/5fd8baacc7... WEB
https://git.kernel.org/stable/c/5fd8baacc7dc477df9cac61b45491840247a9b1e
git.kernel.org/stable/c/621707dc67... WEB
https://git.kernel.org/stable/c/621707dc67c9846fd876d7579ec951d92aa033f1
git.kernel.org/stable/c/be539138d9... WEB
https://git.kernel.org/stable/c/be539138d9a187af3b884525a395db10797c64f1

Frequently Asked Questions

What is CVE-2026-93121?
CVE-2026-93121 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-2026-93121?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-93121?
CVE-2026-93121 has a CVSS v3.1 base score of 7.0 (HIGH) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-93121?
CVE-2026-93121 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93121?
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-vg86-rjrh-q8jw",
  "modified" : "2026-09-18T18:31:34Z",
  "published" : "2026-09-17T18:32:11Z",
  "aliases" : [ "CVE-2026-93121" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_fs: Fix fence cleanup in ffs_dmabuf_transfer() error paths\n\nThe error paths for endpoint-disabled (ESHUTDOWN) and request-allocation\nfailure (ENOMEM) in ffs_dmabuf_transfer() jump to err_fence_put which\ncalls dma_fence_put() on the fence. However, at that point the fence has\nonly been kmalloc'd — dma_fence_init() has not been called yet, so the\nrefcount and the fence ops are uninitialized. Calling dma_fence_put() on\nsuch an object leads to undefined behavior.\n\nUse kfree() instead, since the fence is just a plain allocation at this\nstage, and rename the label to err_fence_free to reflect the actual\ncleanup action.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93121"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/58952c83dfe6ea3294a74734d2d1018c1120779a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5fd8baacc7dc477df9cac61b45491840247a9b1e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/621707dc67c9846fd876d7579ec951d92aa033f1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/be539138d9a187af3b884525a395db10797c64f1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:18:06Z"
  }
}