All vulnerabilities

Servers and applications

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 unauthorized web pages in environments where NGINX is being fronted by a load balancer.

Severity
Medium 5.3
Published
9 Jan 2020
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.17.7
Sources
NVD

Affected software

SoftwareAffected versions
nginxServers and applications · cpe:a:f5:nginx
  • Every version before 1.17.7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-20372
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-20372