CVE-2026-27784

A flaw was found in NGINX Open Source, specifically within the ngx_http_mp4_module. An attacker can exploit this memory corruption vulnerability by providing a specially crafted MP4 file. This can lead to an over-read or over-write of NGINX worker memory, causing the worker to terminate and resulting in a Denial of Service (DoS). This issue affects 32-bit NGINX Open Source when built with the ngx_http_mp4_module and the mp4 directive is used.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.