Vulnerability · Published Apr 6, 2021 · Assigned by mitre
CVE-2020-36309
Medium 5.3
In plain English
A medium-severity security flaw in the nginx package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)1.4%top 27.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
ngx_http_lua_module (aka lua-nginx-module) before 0.10.16 in OpenResty allows unsafe characters in an argument when using the API to mutate a URI, or a request or response header.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | nginx | 1.22.0-3 | DEBIAN-CVE-2020-36309 |
| Debian:13 | nginx | 1.22.0-3 | DEBIAN-CVE-2020-36309 |
| Debian:14 | nginx | 1.22.0-3 | DEBIAN-CVE-2020-36309 |
Affected products (as reported)
References
- https://github.com/openresty/lua-nginx-module/compare/v0.10.15...v0.10.16 x_refsource_MISC
- https://github.com/openresty/lua-nginx-module/pull/1654 x_refsource_MISC
- https://news.ycombinator.com/item?id=26712562 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210507-0005/ x_refsource_CONFIRM
- https://lists.debian.org/debian-lts-announce/2025/06/msg00026.html