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TI-2019-14607 Aliases CVE-2019-20372GHSA-c9vh-3f9g-f2xf

NGINX before 1.17.7, with certain error_page configurations, allows HTTP request…

Priority MEDIUM 40CWE-444Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 7 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

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.

Why it matters now

EPSS 0.14961 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 4 advisoriesRed Hat: 7 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*before 1.17.7VulnerableF5
cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:*before 13.0VulnerableApple
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:* Versions before 1.17.7 Vulnerable ·F5
  • cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:* Versions before 13.0 Vulnerable ·Apple
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
  • cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

Red Hat 4 advisories

  • RHSA-2021:0778 Released 2021-03-09 · Red Hat rating Important
    Red Hat Ansible Tower 3.6.7-1 - Container security and bug fix update
    • Red Hat Ansible Tower 3.6 for RHEL 7 ansible-tower-36/ansible-tower
  • RHSA-2021:0779 Released 2021-03-09 · Red Hat rating Important
    Red Hat Ansible Tower 3.7.5-1 - Container security and bug fix update
    • Red Hat Ansible Tower 3.7 for RHEL 7 ansible-tower-37/ansible-tower-rhel7
  • RHSA-2020:5495 Released 2020-12-15 · Red Hat rating Moderate
    nginx:1.16 security update
    • Red Hat Enterprise Linux AppStream (v. 8) nginx-1:1.16.1-1.module+el8.3.0+8844+e5e7039f.1.aarch64::nginx:1.16, nginx-1:1.16.1-1.module+el8.3.0+8844+e5e7039f.1.ppc64le::nginx:1.16, nginx-1:1.16.1-1.module+el8.3.0+8844+e5e7039f.1.s390x::nginx:1.16 +24
Show 1 more Red Hat advisories
  • RHSA-2020:2817 Released 2020-07-02 · Red Hat rating Moderate
    rh-nginx116-nginx security update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-nginx116-nginx-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-image-filter-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-perl-1:1.16.1-4.el7.1 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-nginx116-nginx-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-image-filter-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-perl-1:1.16.1-4.el7.1 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-nginx116-nginx-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-image-filter-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-perl-1:1.16.1-4.el7.1 +3
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-nginx116-nginx-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-image-filter-1:1.16.1-4.el7.1, rh-nginx116-nginx-mod-http-perl-1:1.16.1-4.el7.1 +3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
CloudForms Management Engine 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat Ansible Tower 3.6 for RHEL 7Fixed RHSA-2021:0778
Red Hat Ansible Tower 3.7 for RHEL 7Fixed RHSA-2021:0779
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:5495
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:2817
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:2817
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2020:2817
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:2817

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-20372
  2. 2026-10-03 Alias added: GHSA-c9vh-3f9g-f2xf

References

Exploit 1

Patch 2

Advisory 8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences