---
schema_version: '1.0'
id: security-20260705-f71e59
url: https://osv.dev/vulnerability/DEBIAN-CVE-2026-27784
url_hash: f71e5921a878774fba876043f4339de8ccbd8443a4424874ca0e22321dae2734
canonical_url: https://osv.dev/vulnerability/DEBIAN-CVE-2026-27784
source: osv:debian
category: security/os
category_raw: cve/os
region: null
tags:
- cve
- DEBIAN-CVE-2026-27784
- severity:CVSS:4.0/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
- nginx
- Debian
lang: en
published_at: '2026-03-24T15:16:33Z'
fetched_at: '2026-07-05T15:34:33Z'
updated_at: '2026-07-16T06:46:07Z'
status: published
content_hash: 05921de76c4e743090799b20754963de6201a802eb037b13bd66af89380254d3
license_note: full
summary: 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
summary_source: rss
summary_en: 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
entities: []
related_auto: []
title: DEBIAN-CVE-2026-27784 — nginx
---

# DEBIAN-CVE-2026-27784 — nginx

## TL;DR
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

## Key Points
- cve / DEBIAN-CVE-2026-27784 / severity:CVSS:4.0/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 / nginx / Debian

## Details
**Severity:** CVSS:4.0/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
**Advisory:** DEBIAN-CVE-2026-27784

**Affected (your watchlist):**
- `Debian:nginx` 1.22.1-9+deb12u1 → no fixed version listed [proxmox]

**Details:**
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-tracker.debian.org/tracker/CVE-2026-27784

_Data: OSV.dev (upstream: debian) — https://osv.dev/vulnerability/DEBIAN-CVE-2026-27784_

## Source
元記事: [DEBIAN-CVE-2026-27784 — nginx](https://osv.dev/vulnerability/DEBIAN-CVE-2026-27784) — published 2026-03-24T15:16:33Z