CVE-2026-89733: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-p2g2-5xg5-fj3w
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CVSS 7.8
Published
Advisory Summary

CVE-2026-89733 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89733 at a Glance

CVE Identifier CVE-2026-89733
GHSA Identifier GHSA-p2g2-5xg5-fj3w
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

Attack Vector Local (AV:L)
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-2026-89733

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-2026-89733, 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: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind() In uvc_function_bind() error path, we use usb_ep_free_request which uses uvc->control_req but does not set it to NULL afterwards. Thus, uvc->control_req is a dangling pointer causing a UAF. Also we do not set the uvc->control_buf pointer to NULL after freeing it, which is another dangling pointer. Fix it by setting uvc->control_req to NULL after we run usb_ep_free_request() and uvc->control_buf to NULL after kfree. Do the same for uvc_function_unbind().

References

NVD — CVE-2026-89733 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89733
git.kernel.org/stable/c/38f822ddce... WEB
https://git.kernel.org/stable/c/38f822ddce9355893d734279a26ddec45182197e
git.kernel.org/stable/c/502a7f5b79... WEB
https://git.kernel.org/stable/c/502a7f5b79b7ba751988789e982924f8f496129f
git.kernel.org/stable/c/85dd5e8bd6... WEB
https://git.kernel.org/stable/c/85dd5e8bd6776d02854f2847d83429f1f712e99c
git.kernel.org/stable/c/8e88ed8a37... WEB
https://git.kernel.org/stable/c/8e88ed8a374de67270d38689f2a81018909cafbb
git.kernel.org/stable/c/9897b7da8c... WEB
https://git.kernel.org/stable/c/9897b7da8c0ad8356c1b8649379fcb5a689462cb
git.kernel.org/stable/c/bdab560525... WEB
https://git.kernel.org/stable/c/bdab5605259ba5d6ff927c1a85cc83eb3ecfdacc
git.kernel.org/stable/c/bec7708eb3... WEB
https://git.kernel.org/stable/c/bec7708eb3b5295d12e931db24381b7c94c72953
git.kernel.org/stable/c/ddb1b0d5d8... WEB
https://git.kernel.org/stable/c/ddb1b0d5d858584ed0d3a5aaa042ee693998c7e2

Frequently Asked Questions

What is CVE-2026-89733?
CVE-2026-89733 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-2026-89733?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89733?
CVE-2026-89733 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-89733?
CVE-2026-89733 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89733?
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 
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  "id" : "GHSA-p2g2-5xg5-fj3w",
  "modified" : "2026-09-14T15:32:35Z",
  "published" : "2026-09-11T21:31:38Z",
  "aliases" : [ "CVE-2026-89733" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()\n\nIn uvc_function_bind() error path, we use usb_ep_free_request which\nuses uvc->control_req but does not set it to NULL afterwards. Thus,\nuvc->control_req is a dangling pointer causing a UAF. Also we do not set\nthe uvc->control_buf pointer to NULL after freeing it, which is another\ndangling pointer. Fix it by setting uvc->control_req to NULL after we run\nusb_ep_free_request() and uvc->control_buf to NULL after kfree. Do the\nsame for uvc_function_unbind().",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
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  "database_specific" : {
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    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:20:03Z"
  }
}