CVE-2026-15469: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-w7r2-cxjq-9w33
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CWE-321
Published
Advisory Summary

CVE-2026-15469 is a HIGH 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-2026-15469 at a Glance

CVE Identifier CVE-2026-15469
GHSA Identifier GHSA-w7r2-cxjq-9w33
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-321: Use of Hard-coded Cryptographic Key
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-15469

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-2026-15469, 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

The use of hard-coded cryptographic key vulnerability has been identified in the mesh functionality of Deco XE75 v3, XE5300 v3.6 and WE10800 v3.6.  A shared RSA-512 mesh group private key is present in the affected firmware and is used by the mesh protocol for node authentication.  An attacker who obtains the firmware image and has local network access may be able to authenticate as a mesh node without possessing a device-specific credential. Successful exploitation may allow an unauthenticated adjacent attacker to impersonate a trusted mesh node and bypass mesh node authentication, which may permit unauthorized changes to device or mesh configuration, affecting confidentiality, integrity and availability.

References

NVD — CVE-2026-15469 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15469
www.tp-link.com/en/support/download... WEB
https://www.tp-link.com/en/support/download/deco-xe75/v3.60/#Firmware
www.tp-link.com/us/support/download... WEB
https://www.tp-link.com/us/support/download/deco-we10800/#Firmware
www.tp-link.com/us/support/download... WEB
https://www.tp-link.com/us/support/download/deco-xe5300/#Firmware
www.tp-link.com/us/support/download... WEB
https://www.tp-link.com/us/support/download/deco-xe75/v3.60/#Firmware
www.tp-link.com/us/support/faq/5263 WEB
https://www.tp-link.com/us/support/faq/5263

Frequently Asked Questions

What is CVE-2026-15469?
CVE-2026-15469 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-2026-15469?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-15469?
CVE-2026-15469 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-2026-15469?
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-w7r2-cxjq-9w33",
  "modified" : "2026-08-24T18:31:51Z",
  "published" : "2026-08-24T18:31:51Z",
  "aliases" : [ "CVE-2026-15469" ],
  "details" : "The use of\nhard-coded cryptographic key vulnerability has been identified in the mesh\nfunctionality of Deco XE75 v3, XE5300 v3.6 and WE10800 v3.6. \nA shared RSA-512 mesh group private key is present in the affected\nfirmware and is used by the mesh protocol for node authentication.  An attacker who obtains the firmware image\nand has local network access may be able to authenticate as a mesh node without\npossessing a device-specific credential.\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent attacker to impersonate a\ntrusted mesh node and bypass mesh node authentication, which may permit unauthorized\nchanges to device or mesh configuration, affecting confidentiality, integrity\nand availability.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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-2026-15469"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/en/support/download/deco-xe75/v3.60/#Firmware"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/us/support/download/deco-we10800/#Firmware"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/us/support/download/deco-xe5300/#Firmware"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/us/support/download/deco-xe75/v3.60/#Firmware"
  }, {
    "type" : "WEB",
    "url" : "https://www.tp-link.com/us/support/faq/5263"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-321" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-24T17:17:21Z"
  }
}