CVE-2026-108804: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-7h8p-2xqf-85x7
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CVSS 10.0
CWE-77
Published
Advisory Summary

CVE-2026-108804 is a CRITICAL (CVSS 10.0) security vulnerability vulnerability (CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-108804 at a Glance

CVE Identifier CVE-2026-108804
GHSA Identifier GHSA-7h8p-2xqf-85x7
Severity CRITICAL
CVSS v3.1 Base Score 10.0
CWE Classification CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 10.0

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

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

How to Fix CVE-2026-108804

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-2026-108804, 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-77: Improper Neutralization of Special Elements used in a Command ('Command Injection'), where the product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. 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

A vulnerability was detected in TRENDnet TEW-751DR, TEW-752DRU and TEW733GR 1.03B01/1.03B03. Affected is the function fwrite of the file pigwidgeon.cgi of the component Web Management Backend. The manipulation of the argument service results in os command injection. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor confirms: "As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product." This vulnerability only affects products that are no longer supported by the maintainer.

References

NVD — CVE-2026-108804 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-108804
Software Source Repository REPOSITORY
https://github.com/dacj4n/TRENDNetExploits
Software Source Repository REPOSITORY
https://github.com/dacj4n/TRENDNetExploits/tree/main/exploit
vuldb.com/cve/cve-2026-108804 WEB
https://vuldb.com/cve/CVE-2026-108804
vuldb.com/submit/962770 WEB
https://vuldb.com/submit/962770
vuldb.com/vuln/416581 WEB
https://vuldb.com/vuln/416581
vuldb.com/vuln/416581/cti WEB
https://vuldb.com/vuln/416581/cti

Frequently Asked Questions

What is CVE-2026-108804?
CVE-2026-108804 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-108804?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-108804?
CVE-2026-108804 has a CVSS v3.1 base score of 10.0 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-108804?
CVE-2026-108804 is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') (The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.).
How can I check Maven dependencies for CVE-2026-108804?
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 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-7h8p-2xqf-85x7",
  "modified" : "2026-10-12T06:31:17Z",
  "published" : "2026-10-12T06:31:17Z",
  "aliases" : [ "CVE-2026-108804" ],
  "details" : "A vulnerability was detected in TRENDnet TEW-751DR, TEW-752DRU and TEW733GR 1.03B01/1.03B03. Affected is the function fwrite of the file pigwidgeon.cgi of the component Web Management Backend. The manipulation of the argument service results in os command injection. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor confirms: \"As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product.\" This vulnerability only affects products that are no longer supported by the maintainer.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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",
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  }, {
    "type" : "WEB",
    "url" : "https://github.com/dacj4n/TRENDNetExploits"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dacj4n/TRENDNetExploits/tree/main/exploit"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/416581"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/416581/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-12T06:16:59Z"
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}