Integer Overflow or Wraparound Affecting nginx package, versions [1.1.19,1.28.3)[1.29.0,1.29.7)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Integer Overflow or Wraparound vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-UNMANAGED-NGINX-15807088
- published29 Mar 2026
- disclosed24 Mar 2026
- creditPrabhav Srinath
Introduced: 24 Mar 2026
CVE-2026-27784 (opens in a new tab)How to fix?
Upgrade nginx to version 1.28.3, 1.29.7 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the ngx_http_mp4_module when processing a specially crafted MP4 file. An attacker can cause memory corruption by supplying a malicious MP4 file, which may result in over-read or over-write of worker memory, leading to process termination and service disruption. This is only exploitable if running on a 32-bit system with the ngx_http_mp4_module enabled and the mp4 directive configured.