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Acknowledged

LIN1021-22003 : Security Advisory - nginx - CVE-2026-27784

Created: Mar 25, 2026    Updated: Apr 20, 2026
Found In Version: 10.21.20.2
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace

Description

The 32-bit implementation of NGINX Open Source has a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to over-read or over-write NGINX worker memory resulting in its termination, using a specially crafted MP4 file. The issue only affects 32-bit NGINX Open Source if it is built with the ngx_http_mp4_module module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted MP4 file with the ngx_http_mp4_module module.    Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.