CVE-2026-80827: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-459p-cph9-qpfg
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Advisory Summary

CVE-2026-80827 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-2026-80827 at a Glance

CVE Identifier CVE-2026-80827
GHSA Identifier GHSA-459p-cph9-qpfg
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-2026-80827

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-2026-80827, 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: serial: option: fix slab OOB read in interrupt URB callback The interrupt URB buffer is allocated in setup_port_interrupt_in() based on the endpoint's wMaxPacketSize: buffer_size = usb_endpoint_maxp(epd); port->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL); When a USB device declares wMaxPacketSize = 8 on its interrupt IN endpoint, the buffer is allocated from kmalloc-8 cache (exactly 8 bytes). If the device sends a short packet (actual_length < wMaxPacketSize), the URB completes with status == 0 and the callback proceeds to read: data[sizeof(struct usb_ctrlrequest)] which evaluates to data[8], accessing 1 byte beyond the allocated 8-byte buffer. This results in a slab out-of-bounds read. Fix this by adding the missing bounds check: first verify that the actual length is large enough to contain the struct usb_ctrlrequest header before accessing req_pkt->bRequestType and req_pkt->bRequest, and then verify that there is an additional byte for the modem signal state before reading data[sizeof(struct usb_ctrlrequest)] inside the conditional. Use sizeof(*req_pkt) instead of sizeof(struct usb_ctrlrequest) for consistency. [ johan: use dev_err(); split signals declaration and initialisation ]

References

NVD — CVE-2026-80827 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80827
git.kernel.org/stable/c/030e3a73d3... WEB
https://git.kernel.org/stable/c/030e3a73d3c3aa67c44454649e984d6383cdb7d3
git.kernel.org/stable/c/060db7d48a... WEB
https://git.kernel.org/stable/c/060db7d48af1e650643c8b8319111a9ea2ce4486
git.kernel.org/stable/c/2ef5560387... WEB
https://git.kernel.org/stable/c/2ef5560387f2c0713cee975be2b24b281bd90f3e
git.kernel.org/stable/c/6b8cf5422c... WEB
https://git.kernel.org/stable/c/6b8cf5422c7e96ed5b22a8368eff663f3f98b8ec
git.kernel.org/stable/c/885d802f54... WEB
https://git.kernel.org/stable/c/885d802f544ca7bfa8f3984d94233cce715bb6b3
git.kernel.org/stable/c/94e5525697... WEB
https://git.kernel.org/stable/c/94e5525697b9e91ddc4071129874120a50a4f342
git.kernel.org/stable/c/a72a13c83a... WEB
https://git.kernel.org/stable/c/a72a13c83a652516a0e469d275b81d29a7429049
git.kernel.org/stable/c/d762aef4eb... WEB
https://git.kernel.org/stable/c/d762aef4eba354066be21a5d88eb2066e282f4c9
git.kernel.org/stable/c/fbe60fd2ab... WEB
https://git.kernel.org/stable/c/fbe60fd2abc8a5561f39719a41ad9a01b5d8e567

Frequently Asked Questions

What is CVE-2026-80827?
CVE-2026-80827 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-2026-80827?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80827?
CVE-2026-80827 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80827?
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-459p-cph9-qpfg",
  "modified" : "2026-09-04T18:31:28Z",
  "published" : "2026-09-04T18:31:28Z",
  "aliases" : [ "CVE-2026-80827" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: option: fix slab OOB read in interrupt URB callback\n\nThe interrupt URB buffer is allocated in setup_port_interrupt_in() based\non the endpoint's wMaxPacketSize:\n\n    buffer_size = usb_endpoint_maxp(epd);\n    port->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL);\n\nWhen a USB device declares wMaxPacketSize = 8 on its interrupt IN\nendpoint, the buffer is allocated from kmalloc-8 cache (exactly\n8 bytes).\n\nIf the device sends a short packet (actual_length < wMaxPacketSize),\nthe URB completes with status == 0 and the callback proceeds to read:\n\n    data[sizeof(struct usb_ctrlrequest)]\n\nwhich evaluates to data[8], accessing 1 byte beyond the allocated 8-byte\nbuffer. This results in a slab out-of-bounds read.\n\nFix this by adding the missing bounds check: first verify that the\nactual length is large enough to contain the struct usb_ctrlrequest\nheader before accessing req_pkt->bRequestType and req_pkt->bRequest,\nand then verify that there is an additional byte for the modem signal\nstate before reading data[sizeof(struct usb_ctrlrequest)] inside the\nconditional.  Use sizeof(*req_pkt) instead of sizeof(struct\nusb_ctrlrequest) for consistency.\n\n[ johan: use dev_err(); split signals declaration and initialisation ]",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80827"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/030e3a73d3c3aa67c44454649e984d6383cdb7d3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/060db7d48af1e650643c8b8319111a9ea2ce4486"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2ef5560387f2c0713cee975be2b24b281bd90f3e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6b8cf5422c7e96ed5b22a8368eff663f3f98b8ec"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/885d802f544ca7bfa8f3984d94233cce715bb6b3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/94e5525697b9e91ddc4071129874120a50a4f342"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a72a13c83a652516a0e469d275b81d29a7429049"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d762aef4eba354066be21a5d88eb2066e282f4c9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fbe60fd2abc8a5561f39719a41ad9a01b5d8e567"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:10Z"
  }
}