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CVE-2020-36309

20
FAUCET Score

CVE-2020-36309 describes a vulnerability in ngx_http_lua_module (lua-nginx-module) versions prior to 0.10.16, affecting OpenResty. This flaw allows for the injection of unsafe characters when using the API to modify URIs or request/response headers. With a CVSS score of 5.3 (Medium), it has a low impact on integrity and requires no user interaction, but is network-exploitable. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.10.16CPE matchmatch criteria
cpe:2.3:a:openresty:lua-nginx-module:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 48th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

lists.debian.org / debian-lts-announce/2025/06/msg00026.html
github.com / openresty/lua-nginx-module/compare/v0.10.15...v0.10.16
PatchThird Party Advisory
github.com / openresty/lua-nginx-module/pull/1654
PatchThird Party Advisory
news.ycombinator.com / item
Third Party Advisory
security.netapp.com / advisory/ntap-20210507-0005
Third Party Advisory