NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_dav_module module that might allow an attacker to trigger a buffer overflow to the NGINX worker process; this vulnerability may result in termination of the NGINX worker process or modification of source or destination file names outside the document root. This issue affects NGINX Open Source and NGINX Plus when the configuration file uses DAV module MOVE or COPY methods, prefix location (nonregular expression location configuration), and alias directives. The integrity impact is constrained because the NGINX worker process user has low privileges and does not have access to the entire system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.2, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited integrity, and availability (service disruption) for affected systems. Impacting 2 products from f5, from f5 organizations running these solutions should prioritize assessment and patching.
Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2026-03-24T15:16:33.130
2026-03-26T21:16:16.737
Analyzed
CVSSv3.1: 8.2 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | f5 | nginx_plus | r32 | Yes |
| Application | f5 | nginx_plus | r32 | Yes |
| Application | f5 | nginx_plus | r32 | Yes |
| Application | f5 | nginx_plus | r32 | Yes |
| Application | f5 | nginx_plus | r33 | Yes |
| Application | f5 | nginx_plus | r33 | Yes |
| Application | f5 | nginx_plus | r33 | Yes |
| Application | f5 | nginx_plus | r33 | Yes |
| Application | f5 | nginx_plus | r34 | Yes |
| Application | f5 | nginx_plus | r34 | Yes |
| Application | f5 | nginx_plus | r34 | Yes |
| Application | f5 | nginx_plus | r35 | Yes |
| Application | f5 | nginx_plus | r35 | Yes |
| Application | f5 | nginx_plus | r36 | Yes |
| Application | f5 | nginx_plus | r36 | Yes |
| Application | f5 | nginx_plus | r36 | Yes |
| Application | f5 | nginx_open_source | ≤ 0.9.7 | Yes |
| Application | f5 | nginx_open_source | < 1.28.3 | Yes |
| Application | f5 | nginx_open_source | < 1.29.7 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For f5's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.