CVE-2026-27784
High · 7.8CVSS
7.8
EPSS
1.1%
Published
Mar 24, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Tumbleweed | nginx | 0 | 1.29.7-1.1 |
Related vulnerabilities
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- CVE-2026-40701 NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module… Also affects nginx
- CVE-2026-40460 When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an… Also affects nginx