CVE-2019-20372
NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read...
- Published
- Jan 9, 2020
- Updated
- Aug 5, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NModerate · next 30 days
- Percentile
- 96.7%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.
Sources
- CVE-2019-20372Exploit
nginx http request smugling error_page directive
- CVE-2019-20372Exploit
Nginx CVE-2019-20372 PoC, Unauthenticated File Upload Exploit
Proof-of-concept exploit for CVE-2019-20372: HTTP request smuggling via nginx error_page directive, enabling access to hidden resources.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.