CVE-2026-97923: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-28hv-8h97-8cx6
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Advisory Summary

CVE-2026-97923 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-2026-97923 at a Glance

CVE Identifier CVE-2026-97923
GHSA Identifier GHSA-28hv-8h97-8cx6
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-2026-97923

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-2026-97923, 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: tracing: Free histogram the var ref when its initialization fails create_var_ref() allocates a VAR_REF hist_field and then calls init_var_ref() to fill it in. When that fails the field is leaked. commit 656fe2ba85e8 ("tracing: Use hist trigger's var_ref array to destroy var_refs") made destroy_hist_field() return early for HIST_FIELD_FL_VAR_REF, since var refs are freed by walking the trigger's var_refs[] array instead. create_var_ref() adds the field to that array only after init_var_ref() has succeeded, so on this path the field is in neither place and nothing frees it. The call was correct when it was written, before var refs were taken out of destroy_hist_field(). init_var_ref() cannot free it either. The caller owns the field, so init_var_ref() undoes only its own string allocations and leaves the field alone. Freeing it there would leave create_var_ref() passing freed memory to destroy_hist_field(), which reads its flags. Call __destroy_hist_field(), which frees the field without consulting the flag.

References

NVD — CVE-2026-97923 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-97923
git.kernel.org/stable/c/222abcbe78... WEB
https://git.kernel.org/stable/c/222abcbe7866fef04563b6eb89fb21f627dcbc77
git.kernel.org/stable/c/352f84a381... WEB
https://git.kernel.org/stable/c/352f84a381e7b4651b30366e93cb858f3fa9c91a
git.kernel.org/stable/c/4870f9071c... WEB
https://git.kernel.org/stable/c/4870f9071c9ea3c1423a07741b85a794db30d672
git.kernel.org/stable/c/4924328d69... WEB
https://git.kernel.org/stable/c/4924328d6991f25b65bb7c8ff5d56c2a9b254851
git.kernel.org/stable/c/516001d53e... WEB
https://git.kernel.org/stable/c/516001d53e6b2ea95a251ee2ef54a1a689a3fd58
git.kernel.org/stable/c/608b775192... WEB
https://git.kernel.org/stable/c/608b7751926ec08fae6a1ac4e7308195da68c362
git.kernel.org/stable/c/74375caa20... WEB
https://git.kernel.org/stable/c/74375caa20fe5165807b4334c783d1790b01f02a
git.kernel.org/stable/c/a69baeac38... WEB
https://git.kernel.org/stable/c/a69baeac38677270656e85753d93856a076dee57

Frequently Asked Questions

What is CVE-2026-97923?
CVE-2026-97923 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-2026-97923?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-97923?
CVE-2026-97923 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-97923?
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-28hv-8h97-8cx6",
  "modified" : "2026-10-03T12:31:20Z",
  "published" : "2026-09-25T12:31:28Z",
  "aliases" : [ "CVE-2026-97923" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Free histogram the var ref when its initialization fails\n\ncreate_var_ref() allocates a VAR_REF hist_field and then calls\ninit_var_ref() to fill it in. When that fails the field is leaked.\n\ncommit 656fe2ba85e8 (\"tracing: Use hist trigger's var_ref array to destroy\nvar_refs\") made destroy_hist_field() return early for\nHIST_FIELD_FL_VAR_REF, since var refs are freed by walking the trigger's\nvar_refs[] array instead. create_var_ref() adds the field to that array\nonly after init_var_ref() has succeeded, so on this path the field is in\nneither place and nothing frees it. The call was correct when it was\nwritten, before var refs were taken out of destroy_hist_field().\n\ninit_var_ref() cannot free it either. The caller owns the field, so\ninit_var_ref() undoes only its own string allocations and leaves the\nfield alone. Freeing it there would leave create_var_ref() passing freed\nmemory to destroy_hist_field(), which reads its flags.\n\nCall __destroy_hist_field(), which frees the field without consulting\nthe flag.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-97923"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/222abcbe7866fef04563b6eb89fb21f627dcbc77"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/352f84a381e7b4651b30366e93cb858f3fa9c91a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4870f9071c9ea3c1423a07741b85a794db30d672"
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    "type" : "WEB",
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    "type" : "WEB",
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    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a69baeac38677270656e85753d93856a076dee57"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:19Z"
  }
}