CVE-2026-80829: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-vx4g-2353-jv9w
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Advisory Summary

CVE-2026-80829 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-2026-80829 at a Glance

CVE Identifier CVE-2026-80829
GHSA Identifier GHSA-vx4g-2353-jv9w
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-2026-80829

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-2026-80829, 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: usb-audio: fix OOB write in snd_usbmidi_novation_output() snd_usbmidi_novation_output() lays out a two-byte header at transfer_buffer[0..1] and passes &transfer_buffer[2] together with a length of ep->max_transfer - 2 to snd_rawmidi_transmit(): count = snd_rawmidi_transmit(ep->ports[0].substream, &transfer_buffer[2], ep->max_transfer - 2); ep->max_transfer comes from the output endpoint's wMaxPacketSize via usb_maxpacket(). A malformed or malicious device can advertise a bulk OUT endpoint with a wMaxPacketSize of 1 - the USB core only clamps this value downwards - so ep->max_transfer becomes 1 and the count argument becomes -1. snd_rawmidi_transmit() passes the negative count on to __snd_rawmidi_transmit_peek(), where "if (count1 > count) count1 = count" leaves count1 negative; get_aligned_size() keeps it negative for a byte-stream substream, so the following memcpy(buffer, ..., count1) runs with a (size_t)-1 length and writes far past the transfer buffer, which was allocated with usb_alloc_coherent(ep->max_transfer). This is the same class of bug that was fixed for snd_usbmidi_akai_output() in commit 0970274613fb ("ALSA: usb-audio: fix OOB write in snd_usbmidi_akai_output()"); the novation output routine was left unguarded. Bail out when the endpoint cannot hold the two-byte header plus at least one payload byte.

References

NVD — CVE-2026-80829 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80829
git.kernel.org/stable/c/1035a8f63b... WEB
https://git.kernel.org/stable/c/1035a8f63bae28e498b0e7b5ac91d749844a7158
git.kernel.org/stable/c/1074c23069... WEB
https://git.kernel.org/stable/c/1074c2306901b44ebcb83855583c6776e1e392ea
git.kernel.org/stable/c/558fc4485e... WEB
https://git.kernel.org/stable/c/558fc4485ecc704edfe7876d6cebae4738ff7ef8
git.kernel.org/stable/c/7639ec9755... WEB
https://git.kernel.org/stable/c/7639ec9755d3ec0ec8cd7c0fdd2c3d3997434870
git.kernel.org/stable/c/7f00dbddb5... WEB
https://git.kernel.org/stable/c/7f00dbddb51f4f74325cdc7c3f6b19fb3392481a
git.kernel.org/stable/c/91919b3b99... WEB
https://git.kernel.org/stable/c/91919b3b99ab7ce3d7dbb39fcf7c6c742a663c0c
git.kernel.org/stable/c/94e4562fcc... WEB
https://git.kernel.org/stable/c/94e4562fcc81badd1d467ddfb88c27e4fae974c2
git.kernel.org/stable/c/9c82124366... WEB
https://git.kernel.org/stable/c/9c8212436631b0063cb021e9f58df438e3db84d0
git.kernel.org/stable/c/e9c00d7533... WEB
https://git.kernel.org/stable/c/e9c00d7533f99aa9833c4b598f47e3b3202fdb9a

Frequently Asked Questions

What is CVE-2026-80829?
CVE-2026-80829 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-2026-80829?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80829?
CVE-2026-80829 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80829?
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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  "schema_version" : "1.4.0",
  "id" : "GHSA-vx4g-2353-jv9w",
  "modified" : "2026-09-04T18:31:28Z",
  "published" : "2026-09-04T18:31:28Z",
  "aliases" : [ "CVE-2026-80829" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: fix OOB write in snd_usbmidi_novation_output()\n\nsnd_usbmidi_novation_output() lays out a two-byte header at\ntransfer_buffer[0..1] and passes &transfer_buffer[2] together with a\nlength of ep->max_transfer - 2 to snd_rawmidi_transmit():\n\n\tcount = snd_rawmidi_transmit(ep->ports[0].substream,\n\t\t\t\t     &transfer_buffer[2],\n\t\t\t\t     ep->max_transfer - 2);\n\nep->max_transfer comes from the output endpoint's wMaxPacketSize via\nusb_maxpacket(). A malformed or malicious device can advertise a bulk\nOUT endpoint with a wMaxPacketSize of 1 - the USB core only clamps this\nvalue downwards - so ep->max_transfer becomes 1 and the count argument\nbecomes -1.\n\nsnd_rawmidi_transmit() passes the negative count on to\n__snd_rawmidi_transmit_peek(), where \"if (count1 > count) count1 = count\"\nleaves count1 negative; get_aligned_size() keeps it negative for a\nbyte-stream substream, so the following memcpy(buffer, ..., count1) runs\nwith a (size_t)-1 length and writes far past the transfer buffer, which\nwas allocated with usb_alloc_coherent(ep->max_transfer).\n\nThis is the same class of bug that was fixed for snd_usbmidi_akai_output()\nin commit 0970274613fb (\"ALSA: usb-audio: fix OOB write in\nsnd_usbmidi_akai_output()\"); the novation output routine was left\nunguarded. Bail out when the endpoint cannot hold the two-byte header\nplus at least one payload byte.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80829"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1035a8f63bae28e498b0e7b5ac91d749844a7158"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1074c2306901b44ebcb83855583c6776e1e392ea"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/558fc4485ecc704edfe7876d6cebae4738ff7ef8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7639ec9755d3ec0ec8cd7c0fdd2c3d3997434870"
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    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/94e4562fcc81badd1d467ddfb88c27e4fae974c2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9c8212436631b0063cb021e9f58df438e3db84d0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e9c00d7533f99aa9833c4b598f47e3b3202fdb9a"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:10Z"
  }
}