CVE-2026-19025: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-546v-jw2p-gc8p
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CWE-369
Published
Advisory Summary

CVE-2026-19025 is a MODERATE security vulnerability vulnerability (CWE-369: Divide By Zero) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product divides a value by zero.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-19025 at a Glance

CVE Identifier CVE-2026-19025
GHSA Identifier GHSA-546v-jw2p-gc8p
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-369: Divide By Zero
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-19025

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-2026-19025, 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 CWE-369: Divide By Zero, where the product divides a value by zero. 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

H5O__layout_decode in H5Olayout.c in HDF5 through 2.3.0 does not validate that a chunked dataset's stored chunk-layout dimensionality matches its dataspace rank when an existing dataset is opened, whereas this check is performed only at dataset-creation time. This allows attackers to cause a denial of service (divide-by-zero and application crash in H5S__hyper_iter_get_seq_list in src/H5Shyper.c) via a crafted HDF5 file with mismatched chunk/dataspace ranks that is opened and read via H5Dopen2 and H5Dread, e.g. by the h5repack tool.

References

NVD — CVE-2026-19025 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19025
Software Source Repository REPOSITORY
https://github.com/HDFGroup/hdf5/issues/6491

Frequently Asked Questions

What is CVE-2026-19025?
CVE-2026-19025 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-369: Divide By Zero.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-19025?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-19025?
CVE-2026-19025 is classified under CWE-369: Divide By Zero (The product divides a value by zero.).
How can I check Maven dependencies for CVE-2026-19025?
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-546v-jw2p-gc8p",
  "modified" : "2026-08-06T00:31:28Z",
  "published" : "2026-08-06T00:31:28Z",
  "aliases" : [ "CVE-2026-19025" ],
  "details" : "H5O__layout_decode in H5Olayout.c in HDF5 through 2.3.0 does not validate that a chunked dataset's stored chunk-layout dimensionality matches its dataspace rank when an existing dataset is opened, whereas this check is performed only at dataset-creation time. This allows attackers to cause a denial of service (divide-by-zero and application crash in H5S__hyper_iter_get_seq_list in src/H5Shyper.c) via a crafted HDF5 file with mismatched chunk/dataspace ranks that is opened and read via H5Dopen2 and H5Dread, e.g. by the h5repack tool.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-19025"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/HDFGroup/hdf5/issues/6491"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-369" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-05T23:16:53Z"
  }
}