CVE-2026-63932: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-vrpq-2gcp-g727
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Advisory Summary

CVE-2026-63932 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-2026-63932 at a Glance

CVE Identifier CVE-2026-63932
GHSA Identifier GHSA-vrpq-2gcp-g727
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-2026-63932

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-2026-63932, 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: chemical: mhz19b: reject oversized serial replies mhz19b_receive_buf() appends each serdev chunk into the fixed MHZ19B_CMD_SIZE receive buffer and advances buf_idx by len without checking that the chunk fits in the remaining space. A large callback can therefore overflow st->buf before the command path validates the reply. Reset the reply state before each command and reject oversized serial replies before copying them into the fixed buffer. When an oversized reply is detected, wake the waiter and report -EMSGSIZE instead of overwriting st->buf.

References

NVD — CVE-2026-63932 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63932
git.kernel.org/stable/c/673478bc29... WEB
https://git.kernel.org/stable/c/673478bc29cf72010faaf293c1c8c667393335a0
git.kernel.org/stable/c/a5a05410cb... WEB
https://git.kernel.org/stable/c/a5a05410cb34bfa486d63684cdc1f87a3b13f20a
git.kernel.org/stable/c/ea69e7a6ef... WEB
https://git.kernel.org/stable/c/ea69e7a6efa88ef32090a91064c362738cc19ddd

Frequently Asked Questions

What is CVE-2026-63932?
CVE-2026-63932 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-2026-63932?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-63932?
CVE-2026-63932 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-63932?
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-vrpq-2gcp-g727",
  "modified" : "2026-07-19T18:31:46Z",
  "published" : "2026-07-19T18:31:46Z",
  "aliases" : [ "CVE-2026-63932" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\niio: chemical: mhz19b: reject oversized serial replies\n\nmhz19b_receive_buf() appends each serdev chunk into the fixed\nMHZ19B_CMD_SIZE receive buffer and advances buf_idx by len without\nchecking that the chunk fits in the remaining space. A large callback\ncan therefore overflow st->buf before the command path validates the\nreply.\n\nReset the reply state before each command and reject oversized serial\nreplies before copying them into the fixed buffer. When an oversized\nreply is detected, wake the waiter and report -EMSGSIZE instead of\noverwriting st->buf.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-63932"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/673478bc29cf72010faaf293c1c8c667393335a0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a5a05410cb34bfa486d63684cdc1f87a3b13f20a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ea69e7a6efa88ef32090a91064c362738cc19ddd"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:11Z"
  }
}