CVE-2026-93264: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-w4pg-rf77-8rgx
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Advisory Summary

CVE-2026-93264 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-2026-93264 at a Glance

CVE Identifier CVE-2026-93264
GHSA Identifier GHSA-w4pg-rf77-8rgx
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-2026-93264

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-2026-93264, 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: RDMA/efa: Fix PBL chunk length computation On register MR, when creating the PBL, if it's an indirect PBL we create a chunk list to hold the PBL pages pointers. Each chunk is 4KB in size and can hold 510 addresses (EFA_PTRS_PER_CHUNK) and has a 12-byte control buffer at the end of it holding the next chunk's pointer and its length. If the PBL number of pages is a multiple of EFA_PTRS_PER_CHUNK, the calculated last chunk length is wrongly computed as 0, even though that chunk is fully populated with 510 real page pointers. This wrong length is used both to DMA map the chunk and is propagated to the device, causing the device to see the chunk as empty and reject the memory registration. Fix the calculation so it will be performed only if the number of pages isn't a multiple of EFA_PTRS_PER_CHUNK, if it is, its already handled in the above loop correctly. Also prevent out-of-bounds reach in the chunks array in such scenario.

References

NVD — CVE-2026-93264 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93264
git.kernel.org/stable/c/1d4b590277... WEB
https://git.kernel.org/stable/c/1d4b5902773475fc97151379b7e5f09cad0fa57b
git.kernel.org/stable/c/229b42d745... WEB
https://git.kernel.org/stable/c/229b42d7450c1cf96f45ec39ebb69211b06bc036
git.kernel.org/stable/c/3982714e15... WEB
https://git.kernel.org/stable/c/3982714e15512b83115897806dacc94899683420
git.kernel.org/stable/c/489b28f237... WEB
https://git.kernel.org/stable/c/489b28f2377afa70c18c45b06a6387f3d39bb123
git.kernel.org/stable/c/665cd418b8... WEB
https://git.kernel.org/stable/c/665cd418b8561a099c3854443f8ad8ae751b72a0
git.kernel.org/stable/c/932e568490... WEB
https://git.kernel.org/stable/c/932e5684906a090644a9061fae2d254041c3b8f2
git.kernel.org/stable/c/aadf3f9b5e... WEB
https://git.kernel.org/stable/c/aadf3f9b5edb7f0a77e9172b237d2e07c754829c
git.kernel.org/stable/c/da7805f021... WEB
https://git.kernel.org/stable/c/da7805f0211af19968584e621074f253ac07dba7

Frequently Asked Questions

What is CVE-2026-93264?
CVE-2026-93264 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-2026-93264?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-93264?
CVE-2026-93264 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93264?
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-w4pg-rf77-8rgx",
  "modified" : "2026-09-24T18:31:25Z",
  "published" : "2026-09-24T18:31:24Z",
  "aliases" : [ "CVE-2026-93264" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/efa: Fix PBL chunk length computation\n\nOn register MR, when creating the PBL, if it's an indirect PBL we create\na chunk list to hold the PBL pages pointers. Each chunk is 4KB in size\nand can hold 510 addresses (EFA_PTRS_PER_CHUNK) and has a 12-byte\ncontrol buffer at the end of it holding the next chunk's pointer and its\nlength.\n\nIf the PBL number of pages is a multiple of EFA_PTRS_PER_CHUNK, the\ncalculated last chunk length is wrongly computed as 0, even though that\nchunk is fully populated with 510 real page pointers. This wrong length\nis used both to DMA map the chunk and is propagated to the device,\ncausing the device to see the chunk as empty and reject the memory\nregistration.\n\nFix the calculation so it will be performed only if the number of pages\nisn't a multiple of EFA_PTRS_PER_CHUNK, if it is, its already handled in\nthe above loop correctly.\nAlso prevent out-of-bounds reach in the chunks array in such scenario.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93264"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1d4b5902773475fc97151379b7e5f09cad0fa57b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/229b42d7450c1cf96f45ec39ebb69211b06bc036"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3982714e15512b83115897806dacc94899683420"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/489b28f2377afa70c18c45b06a6387f3d39bb123"
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    "url" : "https://git.kernel.org/stable/c/932e5684906a090644a9061fae2d254041c3b8f2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/aadf3f9b5edb7f0a77e9172b237d2e07c754829c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/da7805f0211af19968584e621074f253ac07dba7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T16:17:23Z"
  }
}