CVE-2026-80824: Software Security Vulnerability Vulnerability

UNKNOWN

Advisory Identifier: GHSA-j9hx-p692-x42g

Published 2026-09-04

Advisory Summary

CVE-2026-80824 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-2026-80824 at a Glance

CVE Identifier CVE-2026-80824

GHSA Identifier GHSA-j9hx-p692-x42g

Severity N/A

CVSS v3.1 Base Score N/A

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-09-04

Last Updated 2026-09-04

How to Fix CVE-2026-80824

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-2026-80824, 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: usbfs: fix use-after-free of usb_device in usbdev_release() usbdev_release() drops its reference to the struct usb_device before draining the list of completed async URBs, but that drain path reads back through the same object: free_async() calls dec_usb_memory_use_count() for any URB whose buffer came from the usbfs mmap() region, and its first statement is bus_to_hcd(ps->dev->bus). After a disconnect the usbfs reference can be the last one, in which case usb_put_dev() frees the device and the subsequent loop reads offset 80 of freed memory and uses the result as a struct usb_hcd *, which hcd_buffer_free_pages() then dereferences. This is reachable by an unprivileged process that has read/write access to a /dev/bus/usb node: mmap() the fd, submit one URB with a buffer inside the mapping, wait for the device to be unplugged, then munmap() and close(). It reproduces on every attempt rather than being a race, because a live MAP_SHARED vma holds a reference on the struct file, so usbdev_release() cannot run until the last vma is gone and the freeing branch of dec_usb_memory_use_count() is always taken. BUG: KASAN: slab-use-after-free in dec_usb_memory_use_count+0x3ae/0x410 Read of size 8 at addr ffff8880122ee050 by task poc/769 CPU: 1 UID: 1000 PID: 769 Comm: poc Tainted: G B 6.12.94 #3 Call Trace: dec_usb_memory_use_count+0x3ae/0x410 free_async+0x2aa/0x4f0 usbdev_release+0x375/0x460 __fput+0x3ea/0xb50 __x64_sys_close+0x86/0x100 Allocated by task 11: usb_alloc_dev+0x55/0xd90 hub_event+0x2524/0x43d0 Freed by task 769: kfree+0x121/0x360 device_release+0xd2/0x280 usb_put_dev+0x23/0x30 usbdev_release+0x2d8/0x460 Release the device reference after the drain loop instead. Nothing between the two points requires it to have been dropped.

References

NVD — CVE-2026-80824 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-80824

git.kernel.org/stable/c/0a960b88c5... WEB

https://git.kernel.org/stable/c/0a960b88c5979f853019d4dc4957dfbeeb193440

git.kernel.org/stable/c/0dd68b5d01... WEB

https://git.kernel.org/stable/c/0dd68b5d01d022fc9c5e71c82a82b0a94d3d0671

git.kernel.org/stable/c/47a7f98fbb... WEB

https://git.kernel.org/stable/c/47a7f98fbb5006d46d15a3a210ffdc61448a4f19

git.kernel.org/stable/c/5f08c45bdc... WEB

https://git.kernel.org/stable/c/5f08c45bdcfd28d1171de38c5ef29fc89a76eedc

git.kernel.org/stable/c/65879e0a45... WEB

https://git.kernel.org/stable/c/65879e0a452ca2a234b9475e0c11aff7a4343738

git.kernel.org/stable/c/7f0278e474... WEB

https://git.kernel.org/stable/c/7f0278e474c4d1c4457974ff1137cc385c944ab3

git.kernel.org/stable/c/96f5520fc9... WEB

https://git.kernel.org/stable/c/96f5520fc9a5e4bbf77ac93c9d5ce502f597e6cf

git.kernel.org/stable/c/b3cde26a66... WEB

https://git.kernel.org/stable/c/b3cde26a66b04f1d90ed0b675899c88b4e49d424

git.kernel.org/stable/c/bd4bffc621... WEB

https://git.kernel.org/stable/c/bd4bffc621a8cb2f4d9ed9b6447415de524a3bef

Frequently Asked Questions

What is CVE-2026-80824?

CVE-2026-80824 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-2026-80824?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What CWE is associated with CVE-2026-80824?

CVE-2026-80824 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-80824?

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-j9hx-p692-x42g",
  "modified" : "2026-09-04T18:31:27Z",
  "published" : "2026-09-04T18:31:27Z",
  "aliases" : [ "CVE-2026-80824" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbfs: fix use-after-free of usb_device in usbdev_release()\n\nusbdev_release() drops its reference to the struct usb_device before\ndraining the list of completed async URBs, but that drain path reads back\nthrough the same object: free_async() calls dec_usb_memory_use_count()\nfor any URB whose buffer came from the usbfs mmap() region, and its first\nstatement is bus_to_hcd(ps->dev->bus).\n\nAfter a disconnect the usbfs reference can be the last one, in which case\nusb_put_dev() frees the device and the subsequent loop reads offset 80 of\nfreed memory and uses the result as a struct usb_hcd *, which\nhcd_buffer_free_pages() then dereferences.\n\nThis is reachable by an unprivileged process that has read/write access to\na /dev/bus/usb node: mmap() the fd, submit one URB with a buffer inside the\nmapping, wait for the device to be unplugged, then munmap() and close().\nIt reproduces on every attempt rather than being a race, because a live\nMAP_SHARED vma holds a reference on the struct file, so usbdev_release()\ncannot run until the last vma is gone and the freeing branch of\ndec_usb_memory_use_count() is always taken.\n\n  BUG: KASAN: slab-use-after-free in dec_usb_memory_use_count+0x3ae/0x410\n  Read of size 8 at addr ffff8880122ee050 by task poc/769\n  CPU: 1 UID: 1000 PID: 769 Comm: poc Tainted: G    B    6.12.94 #3\n\n  Call Trace:\n   dec_usb_memory_use_count+0x3ae/0x410\n   free_async+0x2aa/0x4f0\n   usbdev_release+0x375/0x460\n   __fput+0x3ea/0xb50\n   __x64_sys_close+0x86/0x100\n\n  Allocated by task 11:\n   usb_alloc_dev+0x55/0xd90\n   hub_event+0x2524/0x43d0\n\n  Freed by task 769:\n   kfree+0x121/0x360\n   device_release+0xd2/0x280\n   usb_put_dev+0x23/0x30\n   usbdev_release+0x2d8/0x460\n\nRelease the device reference after the drain loop instead. Nothing between\nthe two points requires it to have been dropped.",
  "severity" : [ ],
  "affected" : [ ],
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  "database_specific" : {
    "cwe_ids" : [ ],
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    "github_reviewed_at" : null,
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  }
}

Advisory Metadata

Source ID: GHSA-j9hx-p692-x42g
Schema Version: 1.4.0
Published: 2026-09-04 18:31
Last Modified: 2026-09-04 18:31
Database Record File: advisories/unreviewed/2026/09/GHSA-j9hx-p692-x42g/GHSA-j9hx-p692-x42g.json