CVE-2026-10550 Overview
CVE-2026-10550 is a command injection vulnerability in the elunez eladmin project through version 2.7. The flaw resides in the App.java file of the Application Deployment Module, where the uploadPath argument is processed without proper sanitization. An authenticated remote attacker can manipulate this parameter to inject operating system commands. A public exploit has been released, increasing the likelihood of opportunistic abuse. The project maintainers were notified via a GitHub issue report but have not responded at the time of disclosure. The weakness is categorized under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component.
Critical Impact
Authenticated remote attackers can execute arbitrary operating system commands on hosts running vulnerable eladmin deployments, leading to limited compromise of confidentiality, integrity, and availability.
Affected Products
- elunez eladmin versions up to and including 2.7
- Application Deployment Module (App.java)
- Deployments exposing the uploadPath parameter to authenticated users
Discovery Timeline
- 2026-06-02 - CVE-2026-10550 published to the National Vulnerability Database
- 2026-06-02 - Last updated in NVD database
Technical Details for CVE-2026-10550
Vulnerability Analysis
The vulnerability exists in the Application Deployment Module of eladmin, a Spring Boot administrative backend. The App.java file accepts a user-supplied uploadPath value used during application deployment operations. The code path does not validate or neutralize shell metacharacters before passing the value to a system command execution function. As a result, an attacker can append arbitrary commands by injecting characters such as ;, &&, |, or backticks into the parameter. Exploitation requires low-privileged authentication, and the attack is delivered over the network without user interaction.
Root Cause
The root cause is improper neutralization of special elements passed to a downstream OS command interpreter [CWE-74]. The uploadPath argument is concatenated into a command string rather than passed as a discrete argument to a safe process execution API. This design assumes the value is trusted user input, yet it is reachable by any authenticated principal of the application.
Attack Vector
The attack vector is network-based. An authenticated attacker submits a crafted request to the deployment endpoint that processes uploadPath. The injected payload runs in the context of the Java application user, typically a service account with filesystem access to the deployment directory. With a public exploit available, attackers can automate scanning for exposed eladmin instances and weaponize default or stolen credentials to chain initial access into command execution.
No verified proof-of-concept code is reproduced here. Refer to the VulDB CVE-2026-10550 entry and GitHub Issue #899 for technical specifics.
Detection Methods for CVE-2026-10550
Indicators of Compromise
- Unexpected child processes spawned by the Java Virtual Machine running eladmin, such as /bin/sh, bash, cmd.exe, or powershell.exe.
- HTTP requests to deployment endpoints containing shell metacharacters (;, &&, ||, |, backticks, $()) within the uploadPath parameter.
- Outbound network connections from the eladmin host to unknown infrastructure shortly after deployment API calls.
- New files written outside the configured deployment directory or modified cron entries on the host.
Detection Strategies
- Inspect web access logs for POST or PUT requests to the application deployment API that include suspicious characters in uploadPath.
- Correlate Java process telemetry with subsequent shell invocations to identify command injection chains.
- Deploy WAF rules that flag shell metacharacters in JSON or form parameters submitted to eladmin endpoints.
Monitoring Recommendations
- Enable process creation auditing on hosts running eladmin and forward events to a centralized logging platform.
- Monitor authenticated user activity for anomalous deployment requests, especially from accounts that do not normally invoke the deployment workflow.
- Track integrity of files in the deployment working directory and surrounding paths.
How to Mitigate CVE-2026-10550
Immediate Actions Required
- Restrict network access to the eladmin administrative interface using firewall rules, VPN, or zero-trust gateways.
- Audit and reduce the number of accounts with access to the Application Deployment Module to only essential administrators.
- Rotate credentials for any account that has access to the deployment endpoint, particularly default or shared accounts.
- Review application logs for prior abuse of the uploadPath parameter.
Patch Information
No official vendor patch has been released. The project was informed through GitHub Issue #899 but has not responded. Track the elunez eladmin repository for upstream fixes and consider applying a local patch that validates uploadPath against an allowlist of safe characters.
Workarounds
- Disable or remove the Application Deployment Module if it is not required in your environment.
- Place the eladmin application behind a reverse proxy that enforces strict input validation on the uploadPath parameter.
- Run the eladmin JVM under a low-privilege service account with restricted filesystem and network capabilities.
- Apply mandatory access control profiles such as AppArmor or SELinux to constrain child process execution from the Java runtime.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
