CVE-2026-89466: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-g9cw-qg44-9g2q
Share
CVSS 7.7
Published
Advisory Summary

CVE-2026-89466 is a HIGH (CVSS 7.7) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89466 at a Glance

CVE Identifier CVE-2026-89466
GHSA Identifier GHSA-g9cw-qg44-9g2q
Severity HIGH
CVSS v3.1 Base Score 7.7
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-89466

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-2026-89466, 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: power: supply: qcom_battmgr: terminate the strings from firmware The qcom_battmgr_sc8280xp_strcpy() takes a Pascal-style string when the firmware sends one. Otherwise it copies all BATTMGR_STRING_LEN bytes and leaves the destination without a terminator. Those destinations are model_number, serial_number and oem_info, each BATTMGR_STRING_LEN and declared next to each other. They go out to user space as val->strval, which power_supply_format_property() prints with "%s", so a firmware string that fills the whole field makes that read run into the following members. Use strscpy() so the copy always terminates, the way the SM8350 path already does for the same field.

References

NVD — CVE-2026-89466 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89466
git.kernel.org/stable/c/0e70a9b0d1... WEB
https://git.kernel.org/stable/c/0e70a9b0d16acf7adebc4f386178a95da27c0027
git.kernel.org/stable/c/6cc6c28c9a... WEB
https://git.kernel.org/stable/c/6cc6c28c9ab6e8ecf901397717a5b391b828cdaf
git.kernel.org/stable/c/ab1112df8f... WEB
https://git.kernel.org/stable/c/ab1112df8f4ffa88cb024dd370c432ced80f77d8
git.kernel.org/stable/c/c06028db62... WEB
https://git.kernel.org/stable/c/c06028db620854b11ad81b04b0a4e1ead930cb76
git.kernel.org/stable/c/ee053561e2... WEB
https://git.kernel.org/stable/c/ee053561e21ce1e1741dd64ca5ddcdb92e40edc1

Frequently Asked Questions

What is CVE-2026-89466?
CVE-2026-89466 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-2026-89466?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89466?
CVE-2026-89466 has a CVSS v3.1 base score of 7.7 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2026-89466?
CVE-2026-89466 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89466?
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-g9cw-qg44-9g2q",
  "modified" : "2026-09-14T15:32:25Z",
  "published" : "2026-09-11T21:31:27Z",
  "aliases" : [ "CVE-2026-89466" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: qcom_battmgr: terminate the strings from firmware\n\nThe qcom_battmgr_sc8280xp_strcpy() takes a Pascal-style string when the\nfirmware sends one. Otherwise it copies all BATTMGR_STRING_LEN bytes and\nleaves the destination without a terminator.\n\nThose destinations are model_number, serial_number and oem_info, each\nBATTMGR_STRING_LEN and declared next to each other. They go out to user\nspace as val->strval, which power_supply_format_property() prints with\n\"%s\", so a firmware string that fills the whole field makes that read run\ninto the following members.\n\nUse strscpy() so the copy always terminates, the way the SM8350 path\nalready does for the same field.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89466"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0e70a9b0d16acf7adebc4f386178a95da27c0027"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6cc6c28c9ab6e8ecf901397717a5b391b828cdaf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ab1112df8f4ffa88cb024dd370c432ced80f77d8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c06028db620854b11ad81b04b0a4e1ead930cb76"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ee053561e21ce1e1741dd64ca5ddcdb92e40edc1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:27Z"
  }
}