Home

Description

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in its termination or possibly code execution, using a specially crafted MP4 file. This issue affects NGINX Open Source and NGINX Plus 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.

PUBLISHED Reserved 2026-03-18 | Published 2026-03-24 | Updated 2026-03-25 | Assigner f5




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-125 Out-of-bounds Read

Product status

Default status
unknown

1.29.0 (semver) before 1.29.7
affected

1.1.19 (semver) before 1.28.3
affected

Default status
unaffected

R36 (custom) before R36 P3
affected

R35 (custom) before R35 P2
affected

R34 (custom) before *
affected

R33 (custom) before *
affected

R32 (custom) before R32 P5
affected

Credits

F5 acknowledges Xint Code and Pavel Kohout (Aisle Research) for bringing this issue to our attention and following the highest standards of coordinated disclosure. reporter

References

my.f5.com/manage/s/article/K000160366 vendor-advisory

cve.org (CVE-2026-32647)

nvd.nist.gov (CVE-2026-32647)

Download JSON