CVE-2026-27784

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.

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27784.json

https://my.f5.com/manage/s/article/K000160364

https://bugzilla.redhat.com/show_bug.cgi?id=2450785

https://access.redhat.com/security/cve/CVE-2026-27784

https://access.redhat.com/errata/RHSA-2026:8346

https://access.redhat.com/errata/RHSA-2026:7343

https://access.redhat.com/errata/RHSA-2026:7002

https://access.redhat.com/errata/RHSA-2026:6923

https://access.redhat.com/errata/RHSA-2026:6907

https://access.redhat.com/errata/RHSA-2026:6906

https://access.redhat.com/errata/RHSA-2026:15966

https://access.redhat.com/errata/RHSA-2026:15945

https://access.redhat.com/errata/RHSA-2026:15943

https://access.redhat.com/errata/RHSA-2026:15942

https://access.redhat.com/errata/RHSA-2026:14836

https://access.redhat.com/errata/RHSA-2026:13839

https://access.redhat.com/errata/RHSA-2026:13680

https://access.redhat.com/errata/RHSA-2026:13634

https://access.redhat.com/errata/RHSA-2026:10065

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS