CVE-2026-63936: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-856p-gwqh-fxcq
Share
Published
Advisory Summary

CVE-2026-63936 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-2026-63936 at a Glance

CVE Identifier CVE-2026-63936
GHSA Identifier GHSA-856p-gwqh-fxcq
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-2026-63936

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-2026-63936, 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: iio: adc: mt6359: fix unchecked return value in mt6358_read_imp In mt6358_read_imp(), the variable val_v is passed to regmap_read() but the return value is not checked. If the read fails, val_v remains uninitialized and its random stack content is subsequently reported as a measurement result. Initialize val_v to zero to ensure a predictable value is reported in case of bus failure and to prevent potential stack data leakage. This also satisfies static analyzers that might otherwise flag the variable as used uninitialized.

References

NVD — CVE-2026-63936 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63936
git.kernel.org/stable/c/6258bfec51... WEB
https://git.kernel.org/stable/c/6258bfec51e894ea97b8e69f3cde7af269b37de9
git.kernel.org/stable/c/944082fdb0... WEB
https://git.kernel.org/stable/c/944082fdb0284a31c0b37a88c8a1d4404da3a6d9
git.kernel.org/stable/c/a72f8e51d6... WEB
https://git.kernel.org/stable/c/a72f8e51d6ee66c255a8a93a4421b8a538d112a8
git.kernel.org/stable/c/f9bbd943c3... WEB
https://git.kernel.org/stable/c/f9bbd943c34a9ad60e593a4b99ce2394e4e2381b

Frequently Asked Questions

What is CVE-2026-63936?
CVE-2026-63936 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-2026-63936?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-63936?
CVE-2026-63936 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-63936?
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-856p-gwqh-fxcq",
  "modified" : "2026-07-19T18:31:47Z",
  "published" : "2026-07-19T18:31:46Z",
  "aliases" : [ "CVE-2026-63936" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: mt6359: fix unchecked return value in mt6358_read_imp\n\nIn mt6358_read_imp(), the variable val_v is passed to regmap_read()\nbut the return value is not checked. If the read fails, val_v remains\nuninitialized and its random stack content is subsequently reported\nas a measurement result.\n\nInitialize val_v to zero to ensure a predictable value is reported\nin case of bus failure and to prevent potential stack data leakage.\nThis also satisfies static analyzers that might otherwise flag the\nvariable as used uninitialized.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-63936"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6258bfec51e894ea97b8e69f3cde7af269b37de9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/944082fdb0284a31c0b37a88c8a1d4404da3a6d9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a72f8e51d6ee66c255a8a93a4421b8a538d112a8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f9bbd943c34a9ad60e593a4b99ce2394e4e2381b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:12Z"
  }
}