CVE-2026-94591: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-rpcg-4hqj-wfv3
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CVSS 8.4
CWE-321
Published
Advisory Summary

CVE-2026-94591 is a HIGH (CVSS 8.4) security vulnerability vulnerability (CWE-321: Use of Hard-coded Cryptographic Key) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses a hard-coded, unchangeable cryptographic key.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-94591 at a Glance

CVE Identifier CVE-2026-94591
GHSA Identifier GHSA-rpcg-4hqj-wfv3
Severity HIGH
CVSS v3.1 Base Score 8.4
CWE Classification CWE-321: Use of Hard-coded Cryptographic Key
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.4

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2026-94591

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-2026-94591, 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-321: Use of Hard-coded Cryptographic Key, where the product uses a hard-coded, unchangeable cryptographic key. 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

Armatura One stores database and message-broker credentials in an install configuration file, encrypting them with AES-128-CBC when this protection is enabled. The encryption key and initialization vector are fixed values embedded in the software itself and are identical across every installation. An attacker with a copy of the installation package can recover this key and initialization vector, and can then decrypt the stored credentials of any specific installation to which the attacker separately obtains the encrypted configuration file.

References

NVD — CVE-2026-94591 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94591
Software Source Repository REPOSITORY
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-274-01.json
www.cisa.gov/news-events/ics-adv... WEB
https://www.cisa.gov/news-events/ics-advisories/icsa-26-274-01

Frequently Asked Questions

What is CVE-2026-94591?
CVE-2026-94591 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-321: Use of Hard-coded Cryptographic Key.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-94591?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-94591?
CVE-2026-94591 has a CVSS v3.1 base score of 8.4 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-94591?
CVE-2026-94591 is classified under CWE-321: Use of Hard-coded Cryptographic Key (The product uses a hard-coded, unchangeable cryptographic key.).
How can I check Maven dependencies for CVE-2026-94591?
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-rpcg-4hqj-wfv3",
  "modified" : "2026-10-03T00:31:13Z",
  "published" : "2026-10-03T00:31:13Z",
  "aliases" : [ "CVE-2026-94591" ],
  "details" : "Armatura One stores database and message-broker credentials in an install configuration file, encrypting them with AES-128-CBC when this protection is enabled. The encryption key and initialization vector are fixed values embedded in the software itself and are identical across every installation. An attacker with a copy of the installation package can recover this key and initialization vector, and can then decrypt the stored credentials of any specific installation to which the attacker separately obtains the encrypted configuration file.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/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" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-94591"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-274-01.json"
  }, {
    "type" : "WEB",
    "url" : "https://www.cisa.gov/news-events/ics-advisories/icsa-26-274-01"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-321" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-02T22:16:56Z"
  }
}