CVE-2026-90451: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-jf96-h34q-q5qw
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CVSS 5.9
CWE-1392
Published
Advisory Summary

CVE-2026-90451 is a HIGH (CVSS 5.9) security vulnerability vulnerability (CWE-1392: Use of Default Credentials) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product uses default credentials (such as passwords or cryptographic keys) for potentially critical functionality.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-90451 at a Glance

CVE Identifier CVE-2026-90451
GHSA Identifier GHSA-jf96-h34q-q5qw
Severity HIGH
CVSS v3.1 Base Score 5.9
CWE Classification CWE-1392: Use of Default Credentials
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.9

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

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

How to Fix CVE-2026-90451

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-2026-90451, 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-1392: Use of Default Credentials, where the product uses default credentials (such as passwords or cryptographic keys) for potentially critical functionality. 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

An example environment-configuration file ships with a fixed, publicly-known secret value used to sign authentication cookies for a bundled packet-analysis component. A deployment that copies this example file into active configuration without running the setup routine that regenerates the value will use the known default, allowing an attacker aware of the default to forge valid authentication cookies for that component.

References

NVD — CVE-2026-90451 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90451
raw.githubusercontent.com/cisagov/csaf/develo... WEB
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json
www.cisa.gov/news-events/ics-adv... WEB
https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01

Frequently Asked Questions

What is CVE-2026-90451?
CVE-2026-90451 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-1392: Use of Default Credentials.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-90451?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-90451?
CVE-2026-90451 has a CVSS v3.1 base score of 5.9 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2026-90451?
CVE-2026-90451 is classified under CWE-1392: Use of Default Credentials (The product uses default credentials (such as passwords or cryptographic keys) for potentially critical functionality.).
How can I check Maven dependencies for CVE-2026-90451?
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-jf96-h34q-q5qw",
  "modified" : "2026-10-03T00:31:12Z",
  "published" : "2026-09-12T00:31:29Z",
  "aliases" : [ "CVE-2026-90451" ],
  "details" : "An example environment-configuration file ships with a fixed, publicly-known secret value used to sign authentication cookies for a bundled packet-analysis component. A deployment that copies this example file into active configuration without running the setup routine that regenerates the value will use the known default, allowing an attacker aware of the default to forge valid authentication cookies for that component.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/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-2026-90451"
  }, {
    "type" : "WEB",
    "url" : "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json"
  }, {
    "type" : "WEB",
    "url" : "https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1392" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T22:16:47Z"
  }
}