CVE-2026-31909 Overview
CVE-2026-31909 is an information disclosure vulnerability affecting Apache OFBiz, the open-source enterprise resource planning (ERP) system. The flaw allows unauthorized actors to access sensitive information without authentication or user interaction. The issue is classified under [CWE-200] (Exposure of Sensitive Information to an Unauthorized Actor) and affects all versions of Apache OFBiz prior to 24.09.06.
The vulnerability is exploitable over the network with low attack complexity and no privileges required. Apache has released version 24.09.06 to address the issue.
Critical Impact
Remote attackers can retrieve sensitive data from vulnerable Apache OFBiz instances over the network without authentication, exposing confidential business and customer information.
Affected Products
- Apache OFBiz versions before 24.09.06
- Apache OFBiz ERP deployments exposed to untrusted networks
- Downstream applications and integrations relying on Apache OFBiz components
Discovery Timeline
- 2026-05-19 - CVE-2026-31909 published to NVD
- 2026-05-19 - Last updated in NVD database
Technical Details for CVE-2026-31909
Vulnerability Analysis
The vulnerability resides in Apache OFBiz, a Java-based ERP platform used for accounting, manufacturing, customer relationship management, and supply chain operations. The flaw enables an unauthenticated remote attacker to read sensitive information that should be restricted to authorized users.
The issue is network-exploitable and requires no privileges or user interaction. Successful exploitation impacts data confidentiality but does not affect integrity or availability of the system. According to EPSS data dated 2026-05-21, the vulnerability has a low exploitation probability at this time.
Root Cause
The root cause is improper access control on resources that contain sensitive information. Apache OFBiz fails to enforce adequate authorization checks before returning data, allowing an unauthorized actor to retrieve content that should require authentication. The Apache OFBiz project addressed this gap in version 24.09.06. Refer to the Apache Security Announcement for the official analysis.
Attack Vector
An attacker sends crafted requests to a network-accessible Apache OFBiz endpoint. Because no authentication is required, the attacker can interact directly with the application. The server returns sensitive data without verifying the requester's authorization. Internet-facing OFBiz deployments are at the highest risk. See the OpenWall OSS-Security Update for additional technical context.
No public proof-of-concept exploit is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.
Detection Methods for CVE-2026-31909
Indicators of Compromise
- Unexpected HTTP requests to Apache OFBiz endpoints from unauthenticated sources targeting data-bearing controllers or services
- Outbound transfers of unusually large response payloads from OFBiz servers to external IP addresses
- Anomalous access patterns in OFBiz application logs referencing administrative or restricted resources without prior session authentication
Detection Strategies
- Inspect Apache OFBiz access logs for requests to sensitive endpoints that return successful HTTP 200 responses without an authenticated session
- Compare deployed OFBiz versions against 24.09.06 using software inventory tooling to identify vulnerable hosts
- Deploy web application firewall (WAF) rules to flag and log requests to OFBiz controllers that historically required authentication
Monitoring Recommendations
- Enable verbose request logging on Apache OFBiz front-end services and forward logs to a centralized SIEM for correlation
- Monitor egress traffic from servers hosting OFBiz for sudden spikes in response size or destination changes
- Alert on repeated requests from a single source IP to multiple OFBiz endpoints within a short time window
How to Mitigate CVE-2026-31909
Immediate Actions Required
- Upgrade Apache OFBiz to version 24.09.06 or later on all production and non-production environments
- Restrict network exposure of OFBiz administrative and service endpoints to trusted internal networks only
- Review historical access logs for evidence of unauthorized data retrieval prior to patching
- Rotate credentials, API keys, and secrets that may have been exposed through the vulnerable deployment
Patch Information
Apache has released Apache OFBiz 24.09.06, which remediates CVE-2026-31909. Administrators should follow standard OFBiz upgrade procedures and validate the deployment in a staging environment before rolling out to production. Detailed release information is available in the Apache Security Announcement.
Workarounds
- Place Apache OFBiz behind a reverse proxy that enforces authentication at the network edge until patching is complete
- Apply WAF rules to block unauthenticated access to sensitive OFBiz controllers and service paths
- Limit inbound access to OFBiz ports using firewall rules permitting only known administrative IP ranges
# Configuration example - restrict OFBiz access at the firewall layer
# Allow only trusted management subnet to reach OFBiz HTTPS port
iptables -A INPUT -p tcp -s 10.0.0.0/24 --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
