CVE-2026-93174: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-2m7j-g554-hf69
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Advisory Summary

CVE-2026-93174 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-2026-93174 at a Glance

CVE Identifier CVE-2026-93174
GHSA Identifier GHSA-2m7j-g554-hf69
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-2026-93174

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-2026-93174, 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: bpf: Copy per-CPU map value padding in copy_map_value_long() In kernel, per-CPU map elements are stored with round_up(map->value_size, 8) bytes. On UAPI lookup paths, it copies the rounded size for each CPU into a temporary buffer. However, copy_map_value_long() passes 'map->value_size' to bpf_obj_memcpy(). When the map has special fields, bpf_obj_memcpy() copies around those fields with memcpy(), and does not copy the tail padding between 'map->value_size' and round_up(map->value_size, 8). The temporary UAPI lookup buffers are allocated without __GFP_ZERO. As a result, when the per-CPU map's value size is not equal to round_up(map->value_size, 8), UAPI LOOKUP_ELEM and its variants can return stale heap contents from that padding to user space. The same issue applies to bpf_iter for per-CPU maps. Pass round_up(map->value_size, 8) to bpf_obj_memcpy() from copy_map_value_long(), so per-CPU maps both with and without special fields copy the entire per-CPU slot. Remove the now redundant round_up() from bpf_obj_memcpy()'s long_memcpy path.

References

NVD — CVE-2026-93174 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93174
git.kernel.org/stable/c/003bf840ed... WEB
https://git.kernel.org/stable/c/003bf840ed3326bd01396ce7d5b431cef0d371e7
git.kernel.org/stable/c/5e9f698298... WEB
https://git.kernel.org/stable/c/5e9f69829835521aa2942d1d14bd0990fbc6991e
git.kernel.org/stable/c/7cf9cd98cf... WEB
https://git.kernel.org/stable/c/7cf9cd98cf6f0df3befc167ca6b54c07014d71de
git.kernel.org/stable/c/953e85da53... WEB
https://git.kernel.org/stable/c/953e85da53541a8dc3e7ad4e8532f29a34a32eae
git.kernel.org/stable/c/ff3f22ed8d... WEB
https://git.kernel.org/stable/c/ff3f22ed8d2f350b4c24ee26e33daea5f08d58ef

Frequently Asked Questions

What is CVE-2026-93174?
CVE-2026-93174 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-2026-93174?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-93174?
CVE-2026-93174 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93174?
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-2m7j-g554-hf69",
  "modified" : "2026-09-17T18:32:13Z",
  "published" : "2026-09-17T18:32:13Z",
  "aliases" : [ "CVE-2026-93174" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Copy per-CPU map value padding in copy_map_value_long()\n\nIn kernel, per-CPU map elements are stored with\nround_up(map->value_size, 8) bytes. On UAPI lookup paths, it copies the\nrounded size for each CPU into a temporary buffer.\n\nHowever, copy_map_value_long() passes 'map->value_size' to\nbpf_obj_memcpy(). When the map has special fields, bpf_obj_memcpy() copies\naround those fields with memcpy(), and does not copy the tail padding\nbetween 'map->value_size' and round_up(map->value_size, 8).\n\nThe temporary UAPI lookup buffers are allocated without __GFP_ZERO. As a\nresult, when the per-CPU map's value size is not equal to\nround_up(map->value_size, 8), UAPI LOOKUP_ELEM and its variants can return\nstale heap contents from that padding to user space. The same issue\napplies to bpf_iter for per-CPU maps.\n\nPass round_up(map->value_size, 8) to bpf_obj_memcpy() from\ncopy_map_value_long(), so per-CPU maps both with and without special\nfields copy the entire per-CPU slot. Remove the now redundant round_up()\nfrom bpf_obj_memcpy()'s long_memcpy path.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93174"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/003bf840ed3326bd01396ce7d5b431cef0d371e7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5e9f69829835521aa2942d1d14bd0990fbc6991e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7cf9cd98cf6f0df3befc167ca6b54c07014d71de"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/953e85da53541a8dc3e7ad4e8532f29a34a32eae"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ff3f22ed8d2f350b4c24ee26e33daea5f08d58ef"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-17T17:18:13Z"
  }
}