CVE-2026-80816: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-42j7-3823-x574
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Advisory Summary

CVE-2026-80816 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-2026-80816 at a Glance

CVE Identifier CVE-2026-80816
GHSA Identifier GHSA-42j7-3823-x574
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-2026-80816

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-2026-80816, 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: ALSA: FCP: Use a private URB for the notification endpoint fcp_init_notify() used mixer->urb, which snd_usb_mixer_status_create() allocates for the optional UAC2 status interrupt endpoint and mixer.c kills, resubmits and frees. On a device with that endpoint, fcp_init_notify()'s "already set up" early return fires on the status URB and returns success without doing anything. No FCP notification URB is submitted, and cmd_done is left zeroed because it is initialised past that early return and nowhere else. fcp_init() then issues init1_opcode and wait_for_completion_timeout() would crash adding to the zeroed wait.head. fcp_cleanup_urb() would also kill and free mixer.c's status URB. Use a separate URB in fcp_data, and initialise cmd_done in fcp_init_private() where fcp_data is allocated. fcp_init_notify() is reached again after suspend via fcp_reinit(), and the URB kill path in fcp_notify() completes cmd_done, leaving a stale count that would satisfy the next command's wait before the device ACKs. Use reinit_completion() to clear it.

References

NVD — CVE-2026-80816 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80816
git.kernel.org/stable/c/5da21a4341... WEB
https://git.kernel.org/stable/c/5da21a434171e8ecf1d992c6f1d84c0c706fd395
git.kernel.org/stable/c/65aceb45ca... WEB
https://git.kernel.org/stable/c/65aceb45ca91ddb7f7ed178821f481b34da35543
git.kernel.org/stable/c/6db3c1d7e2... WEB
https://git.kernel.org/stable/c/6db3c1d7e2872c9904e05ca8e0515920776a3c9c
git.kernel.org/stable/c/918b8d231c... WEB
https://git.kernel.org/stable/c/918b8d231c571c50a00efe92ffc8404a537a0490

Frequently Asked Questions

What is CVE-2026-80816?
CVE-2026-80816 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-2026-80816?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80816?
CVE-2026-80816 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80816?
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-42j7-3823-x574",
  "modified" : "2026-09-04T18:31:27Z",
  "published" : "2026-09-04T18:31:27Z",
  "aliases" : [ "CVE-2026-80816" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: FCP: Use a private URB for the notification endpoint\n\nfcp_init_notify() used mixer->urb, which snd_usb_mixer_status_create()\nallocates for the optional UAC2 status interrupt endpoint and mixer.c\nkills, resubmits and frees. On a device with that endpoint,\nfcp_init_notify()'s \"already set up\" early return fires on the status\nURB and returns success without doing anything. No FCP notification\nURB is submitted, and cmd_done is left zeroed because it is\ninitialised past that early return and nowhere else. fcp_init() then\nissues init1_opcode and wait_for_completion_timeout() would crash\nadding to the zeroed wait.head. fcp_cleanup_urb() would also kill and\nfree mixer.c's status URB.\n\nUse a separate URB in fcp_data, and initialise cmd_done in\nfcp_init_private() where fcp_data is allocated. fcp_init_notify() is\nreached again after suspend via fcp_reinit(), and the URB kill path in\nfcp_notify() completes cmd_done, leaving a stale count that would\nsatisfy the next command's wait before the device ACKs. Use\nreinit_completion() to clear it.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80816"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5da21a434171e8ecf1d992c6f1d84c0c706fd395"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/65aceb45ca91ddb7f7ed178821f481b34da35543"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6db3c1d7e2872c9904e05ca8e0515920776a3c9c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/918b8d231c571c50a00efe92ffc8404a537a0490"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:09Z"
  }
}