What’s Vulnerable › Vulnerabilities
CVE-2020-11724
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-04-12 · updated 2026-06-17
- Weakness: CWE-444
Description
An issue was discovered in OpenResty before 1.15.8.4. ngx_http_lua_subrequest.c allows HTTP request smuggling, as demonstrated by the ngx.location.capture API.
Affected products
- Debian Linux: 9.0, 10.0
- openresty: before 1.15.8.4 — fixed in 1.15.8.4
How to fix
Upgrade to a fixed version: openresty 1.15.8.4. Check the vendor advisory for mitigations.
References
- https://github.com/openresty/lua-nginx-module/commit/9ab38e8ee35fc08a57636b1b6190dca70b0076fa
- https://github.com/openresty/openresty/blob/4e8b4c395f842a078e429c80dd063b2323999957/patches/ngx_http_lua-0.10.15-fix_location_capture_content_length_chunked.patch
- https://lists.debian.org/debian-lts-announce/2020/07/msg00014.html
- https://security.netapp.com/advisory/ntap-20210129-0002/
- https://www.debian.org/security/2020/dsa-4750
- https://github.com/openresty/lua-nginx-module/commit/9ab38e8ee35fc08a57636b1b6190dca70b0076fa
- https://github.com/openresty/openresty/blob/4e8b4c395f842a078e429c80dd063b2323999957/patches/ngx_http_lua-0.10.15-fix_location_capture_content_length_chunked.patch
- https://lists.debian.org/debian-lts-announce/2020/07/msg00014.html
- https://security.netapp.com/advisory/ntap-20210129-0002/
- https://www.debian.org/security/2020/dsa-4750
Get alerted when CVE-2020-11724 or the next vulnerability affects your stack