Medium severity · published Apr 6, 2021
CVE-2020-36309
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
5.3
CVSS
1.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LU
Lua-nginx-module · Openresty
before 0.10.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36309
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-36309
Patch
https://github.com/openresty/lua-nginx-module/compare/v0.10.15...v0.10.16
Patch
https://github.com/openresty/lua-nginx-module/pull/1654
Third Party Advisory
https://news.ycombinator.com/item?id=26712562
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210507-0005/
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/06/msg00026.html
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