CVE-2026-45434: Apache OFBiz RCE Vulnerability

CVE-2026-45434 Overview

CVE-2026-45434 is an Improper Authentication vulnerability [CWE-287] in Apache OFBiz affecting versions prior to 24.09.06. The flaw resides in the password-change logic, where authentication checks can be bypassed to gain unauthorized access. Attackers can chain this authentication bypass into Remote Code Execution (RCE) on the underlying host. The issue is exploitable over the network without user interaction or prior credentials. Apache has released version 24.09.06 to address the vulnerability.

Critical Impact

Unauthenticated attackers can bypass authentication through the password-change workflow and achieve Remote Code Execution on Apache OFBiz servers, fully compromising confidentiality, integrity, and availability.

Affected Products

• Apache OFBiz versions before 24.09.06
• All deployments exposing the OFBiz web interface to untrusted networks
• Enterprise resource planning (ERP) and e-commerce deployments built on Apache OFBiz

Discovery Timeline

• 2026-05-19 - CVE-2026-45434 published to the National Vulnerability Database (NVD)
• 2026-05-19 - Apache mailing list and OpenWall OSS-Security advisories released
• 2026-05-20 - Last updated in NVD database

Technical Details for CVE-2026-45434

Vulnerability Analysis

The vulnerability stems from improper authentication handling within the Apache OFBiz password-change workflow. The password-change logic fails to enforce proper authentication state validation before processing requests. Attackers can craft requests that traverse the password-change path without satisfying the expected authentication preconditions.

Apache OFBiz is a Java-based open-source enterprise resource planning and e-commerce suite. The platform exposes numerous controller endpoints over HTTP and HTTPS. A logic flaw in the request handler responsible for password modification allows an unauthenticated request to manipulate account state. The bypass then enables follow-on actions that lead to Remote Code Execution, consistent with prior OFBiz RCE chains involving Groovy or Beanshell script handling.

The network attack surface, absence of required privileges, and lack of user interaction make this issue suitable for opportunistic scanning and mass exploitation. Confidentiality, integrity, and availability are all impacted with full scope on the targeted host.

Root Cause

The root cause is an authentication logic flaw [CWE-287] in the OFBiz password-change handler. The handler accepts and acts on requests without verifying that the caller is the legitimate account owner or holds an authenticated session. This breaks the authentication boundary that should gate sensitive workflows.

Attack Vector

An attacker sends crafted HTTP requests directly to the vulnerable OFBiz endpoint. After bypassing authentication, the attacker leverages OFBiz functionality reachable to authenticated users to execute arbitrary commands on the server operating system. No prior credentials, tokens, or user interaction are required.

No verified public proof-of-concept code is currently linked in the advisory. See the Apache Mailing List Thread and the OpenWall OSS Security Update for upstream technical details.

Detection Methods for CVE-2026-45434

Indicators of Compromise

• Unexpected POST requests to OFBiz password-change controller paths from external IP addresses
• New or modified administrative accounts in the OFBiz user database without corresponding administrator activity
• Java process (ofbiz) spawning shell interpreters such as sh, bash, cmd.exe, or powershell.exe
• Outbound network connections from the OFBiz server to unfamiliar hosts shortly after suspicious password-change requests

Detection Strategies

• Inspect web server and OFBiz access logs for requests targeting password-change endpoints originating from unauthenticated sessions
• Correlate authentication events with subsequent script-execution or command-execution events on the OFBiz host
• Apply behavioral identification on the OFBiz JVM process for anomalous child process creation
• Hunt for Groovy or Beanshell script execution patterns associated with historical OFBiz RCE chains

Monitoring Recommendations

• Enable verbose access logging on the OFBiz reverse proxy and forward logs to a centralized SIEM
• Alert on bursts of requests to password-management URIs from a single source IP
• Monitor file integrity on OFBiz deployment directories for unauthorized changes
• Track outbound egress from application servers and alert on connections to non-approved destinations

How to Mitigate CVE-2026-45434

Immediate Actions Required

• Upgrade Apache OFBiz to version 24.09.06 or later without delay
• Restrict network exposure of the OFBiz administrative and password-change endpoints to trusted networks only
• Review user accounts and audit logs for unauthorized account creation or password changes
• Rotate credentials for any accounts that may have been targeted prior to patching

Patch Information

Apache has released Apache OFBiz 24.09.06, which remediates the password-change authentication flaw. Operators should follow the upgrade guidance in the Apache Mailing List Thread and the OpenWall OSS Security Update. Patching is the only fully supported remediation.

Workarounds

• Place the OFBiz application behind a web application firewall (WAF) and block requests to password-change endpoints from untrusted sources
• Enforce IP allow-listing on management URIs at the reverse proxy layer
• Disable internet exposure of the OFBiz instance until patching is complete
• Increase logging verbosity to capture forensic evidence during the mitigation window

# Example reverse proxy restriction (nginx) limiting password-change access
location ~* /(accounting|webtools|partymgr).*setPassword.* {
    allow 10.0.0.0/8;
    deny all;
    proxy_pass http://ofbiz_backend;
}