Description
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.
Metrics
CVSS 3.1 5.3/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00013.htmlMailing List, Third Party Advisory
- http://nginx.org/en/CHANGESMitigation, Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2021/Sep/36Mailing List, Third Party Advisory
- https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdfExploit, Mitigation, Third Party Advisory
- https://duo.com/docs/dng-notes#version-1.5.4-january-2020Release Notes, Third Party Advisory
- https://github.com/kubernetes/ingress-nginx/pull/4859Patch, Third Party Advisory
- https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94ePatch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200127-0003/Third Party Advisory
- https://support.apple.com/kb/HT212818Third Party Advisory
- https://usn.ubuntu.com/4235-1/Third Party Advisory
- https://usn.ubuntu.com/4235-2/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00013.htmlMailing List, Third Party Advisory
- http://nginx.org/en/CHANGESMitigation, Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2021/Sep/36Mailing List, Third Party Advisory
- https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdfExploit, Mitigation, Third Party Advisory
- https://duo.com/docs/dng-notes#version-1.5.4-january-2020Release Notes, Third Party Advisory
- https://github.com/kubernetes/ingress-nginx/pull/4859Patch, Third Party Advisory
- https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94ePatch, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200127-0003/Third Party Advisory
- https://support.apple.com/kb/HT212818Third Party Advisory
- https://usn.ubuntu.com/4235-1/Third Party Advisory
- https://usn.ubuntu.com/4235-2/Third Party Advisory
Timeline
- Published
- Jan 9, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified