CVE-2026-89628: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-84x9-cxq8-hpgq
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Advisory Summary

CVE-2026-89628 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-2026-89628 at a Glance

CVE Identifier CVE-2026-89628
GHSA Identifier GHSA-84x9-cxq8-hpgq
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-2026-89628

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-2026-89628, 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: HID: picolcd: clamp eeprom debugfs read to bytes actually received picolcd_debug_eeprom_read() trusts resp->raw_data[2] -- a length byte supplied by the device in its REPORT_EE_DATA reply -- clamped only to the caller's read() count: ret = resp->raw_data[2]; if (ret > s) ret = s; if (copy_to_user(u, resp->raw_data+3, ret)) It never checks resp->raw_size, the number of bytes picolcd_raw_event() actually copied into the 64-byte raw_data[] of the kmalloc'd struct picolcd_pending. A device (or a spoofed picoLCD) returning a length byte of 0xff, read with a count >= 255, makes copy_to_user() read past raw_data[] into adjacent slab memory and return it to userspace through the debugfs "eeprom" file: BUG: KASAN: slab-out-of-bounds in _copy_to_user Read of size 255 ... picolcd_debug_eeprom_read+0x214/0x2f0 [hid_picolcd] The debug-dump path in the same file already validates the device length byte against the received size before trusting it; this read does not. The file is created S_IRUSR (root-only) and a crafted device is needed, so it is neither unprivileged- nor remotely-triggerable. Clamp the copy length to resp->raw_size - 3 (the payload actually received, minus the 3-byte header), floored at 0 for short replies.

References

NVD — CVE-2026-89628 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89628
git.kernel.org/stable/c/1a02056c2b... WEB
https://git.kernel.org/stable/c/1a02056c2bf7ef9b5fd05ee6913aeeadb703c443
git.kernel.org/stable/c/471f4a939c... WEB
https://git.kernel.org/stable/c/471f4a939c66d1d44aece2321807abf609fc9098
git.kernel.org/stable/c/4daf432c94... WEB
https://git.kernel.org/stable/c/4daf432c94a42e7be6aa10b012b33af5ed9bc118
git.kernel.org/stable/c/65daa322f1... WEB
https://git.kernel.org/stable/c/65daa322f1021d8206f8032c4cd4c0cb2d26c7c3
git.kernel.org/stable/c/699a3c8b56... WEB
https://git.kernel.org/stable/c/699a3c8b56e168ca19d12722f3f5ef1d6f4b1d84
git.kernel.org/stable/c/8dc662af01... WEB
https://git.kernel.org/stable/c/8dc662af019158690c470edd2e2857657f700abb
git.kernel.org/stable/c/a3e6e8d719... WEB
https://git.kernel.org/stable/c/a3e6e8d7198a9f3861861520a38b673684a1062b
git.kernel.org/stable/c/e9c667395a... WEB
https://git.kernel.org/stable/c/e9c667395ac1f8024f623250b32bae4c7af9caa0

Frequently Asked Questions

What is CVE-2026-89628?
CVE-2026-89628 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-2026-89628?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89628?
CVE-2026-89628 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89628?
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-84x9-cxq8-hpgq",
  "modified" : "2026-09-14T15:32:33Z",
  "published" : "2026-09-11T21:31:34Z",
  "aliases" : [ "CVE-2026-89628" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: picolcd: clamp eeprom debugfs read to bytes actually received\n\npicolcd_debug_eeprom_read() trusts resp->raw_data[2] -- a length byte\nsupplied by the device in its REPORT_EE_DATA reply -- clamped only to\nthe caller's read() count:\n\n\tret = resp->raw_data[2];\n\tif (ret > s)\n\t\tret = s;\n\tif (copy_to_user(u, resp->raw_data+3, ret))\n\nIt never checks resp->raw_size, the number of bytes picolcd_raw_event()\nactually copied into the 64-byte raw_data[] of the kmalloc'd struct\npicolcd_pending. A device (or a spoofed picoLCD) returning a length byte\nof 0xff, read with a count >= 255, makes copy_to_user() read past\nraw_data[] into adjacent slab memory and return it to userspace through\nthe debugfs \"eeprom\" file:\n\n\tBUG: KASAN: slab-out-of-bounds in _copy_to_user\n\tRead of size 255 ... picolcd_debug_eeprom_read+0x214/0x2f0 [hid_picolcd]\n\nThe debug-dump path in the same file already validates the device length\nbyte against the received size before trusting it; this read does not.\nThe file is created S_IRUSR (root-only) and a crafted device is needed,\nso it is neither unprivileged- nor remotely-triggerable.\n\nClamp the copy length to resp->raw_size - 3 (the payload actually\nreceived, minus the 3-byte header), floored at 0 for short replies.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89628"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1a02056c2bf7ef9b5fd05ee6913aeeadb703c443"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/471f4a939c66d1d44aece2321807abf609fc9098"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4daf432c94a42e7be6aa10b012b33af5ed9bc118"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/65daa322f1021d8206f8032c4cd4c0cb2d26c7c3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/699a3c8b56e168ca19d12722f3f5ef1d6f4b1d84"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8dc662af019158690c470edd2e2857657f700abb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a3e6e8d7198a9f3861861520a38b673684a1062b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e9c667395ac1f8024f623250b32bae4c7af9caa0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:48Z"
  }
}