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High 7.8Published Mar 24, 2026

CVE-2026-32647NGINX 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…

Updated under an hour ago ()

Does this affect you?

It affects f5 nginx_plus and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-125
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Modified
Record last updated
Jul 15, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
f5 nginx_plus
f5:nginx_plus
r32; r32; r32; r32; r33; r33; r33; r33; and 8 more ranges
NVD
f5 nginx_open_source
f5:nginx_open_source
from 1.1.19 before 1.28.3; from 1.29.0 before 1.29.7
NVD

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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