CVE-2026-32647
NGINX ngx_http_mp4_module vulnerability
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.
INFO
Published Date :
March 24, 2026, 3:16 p.m.
Last Modified :
March 26, 2026, 9:11 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 9dacffd4-cb11-413f-8451-fbbfd4ddc0ab | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 9dacffd4-cb11-413f-8451-fbbfd4ddc0ab | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Disable the ngx_http_mp4_module if not required.
- Update NGINX to the latest stable version.
- Remove the mp4 directive from configuration.
- Rebuild NGINX without the module.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-32647.
| URL | Resource |
|---|---|
| https://my.f5.com/manage/s/article/K000160366 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-32647 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-32647
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-32647 vulnerability anywhere in the article.
-
Daily CyberSecurity
F5 Out-of-Band Security Alert: Multiple Vulnerabilities Unveiled in NGINX Plus and Open Source
In a significant out-of-band security notification released on March 24, 2026, F5 has disclosed several critical and high-severity vulnerabilities affecting both NGINX Plus and NGINX Open Source. The ... Read more
-
CybersecurityNews
F5 NGINX Plus and Open Source Vulnerability Allow Attackers to Execute Code Using MP4 file
A high-severity vulnerability has been disclosed affecting both NGINX Open Source and NGINX Plus. Tracked formally as CVE-2026-32647, this security flaw carries a CVSS v4.0 base score of 8.5 and a CVS ... Read more
The following table lists the changes that have been made to the
CVE-2026-32647 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:f5:nginx_plus:r32:p1:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r32:p2:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r33:p1:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r33:p2:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r34:p1:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r32:p3:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r33:p3:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r34:p2:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r36:p1:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r33:*:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r34:*:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r35:p1:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r36:*:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r36:p2:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r32:p4:*:*:*:*:*:* *cpe:2.3:a:f5:nginx_plus:r35:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* versions from (including) 1.29.0 up to (excluding) 1.29.7 *cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* versions from (including) 1.1.19 up to (excluding) 1.28.3 Added Reference Type F5 Networks: https://my.f5.com/manage/s/article/K000160366 Types: Vendor Advisory -
New CVE Received by [email protected]
Mar. 24, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-125 Added Reference https://my.f5.com/manage/s/article/K000160366