CVE-2026-85028: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-4qmw-8r9m-c656
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CVSS 7.8
CWE-379
Published
Advisory Summary

CVE-2026-85028 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-379: Creation of Temporary File in Directory with Insecure Permissions) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-85028 at a Glance

CVE Identifier CVE-2026-85028
GHSA Identifier GHSA-4qmw-8r9m-c656
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-379: Creation of Temporary File in Directory with Insecure Permissions
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-85028

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-2026-85028, 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-379: Creation of Temporary File in Directory with Insecure Permissions, where the product creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file. 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

Creation of a temporary file in a directory with insecure permissions in the FPGA management tool installation component in AWS FPGA Development Kit (aws-fpga) before 2.3.4 might allow local users to execute arbitrary code with root privileges via crafted shell content placed at a predictable path in a world-writable temporary directory, which the installation step reads after elevating its own privileges. To remediate this issue, users should upgrade to version 2.3.4.

References

GitHub Advisory / Wiki ADVISORY
https://github.com/aws/aws-fpga/security/advisories/GHSA-g4hc-wrmm-2x74
NVD — CVE-2026-85028 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85028
Software Security Information SECURITY
https://aws.amazon.com/security/security-bulletins/2026-096-aws
Software Release RELEASE
https://github.com/aws/aws-fpga/releases/tag/v2.3.4

Frequently Asked Questions

What is CVE-2026-85028?
CVE-2026-85028 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-379: Creation of Temporary File in Directory with Insecure Permissions.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-85028?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-85028?
CVE-2026-85028 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-85028?
CVE-2026-85028 is classified under CWE-379: Creation of Temporary File in Directory with Insecure Permissions (The product creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file.).
How can I check Maven dependencies for CVE-2026-85028?
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-4qmw-8r9m-c656",
  "modified" : "2026-09-03T21:31:15Z",
  "published" : "2026-09-03T21:31:15Z",
  "aliases" : [ "CVE-2026-85028" ],
  "details" : "Creation of a temporary file in a directory with insecure permissions in the FPGA management tool installation component in AWS FPGA Development Kit (aws-fpga) before 2.3.4 might allow local users to execute arbitrary code with root privileges via crafted shell content placed at a predictable path in a world-writable temporary directory, which the installation step reads after elevating its own privileges.\n\n\n\nTo remediate this issue, users should upgrade to version 2.3.4.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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" : "WEB",
    "url" : "https://github.com/aws/aws-fpga/security/advisories/GHSA-g4hc-wrmm-2x74"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-85028"
  }, {
    "type" : "WEB",
    "url" : "https://aws.amazon.com/security/security-bulletins/2026-096-aws"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/aws/aws-fpga/releases/tag/v2.3.4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-379" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-03T19:17:30Z"
  }
}