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CVE-2020-36661

24
FAUCET Score

CVE-2020-36661 is a problematic vulnerability affecting Kong lua-multipart version 0.5.8-1, specifically within the is_header function in src/multipart.lua, due to inefficient regular expression complexity. With a CVSS score of 7.5 (High), this vulnerability can be exploited remotely without authentication, leading to a denial-of-service condition. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE. Upgrading to lua-multipart version 0.5.9-1 is recommended to remediate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.8-1CPE matchmatch criteria
cpe:2.3:a:konghq:multipart:0.5.8-1:*:*:*:*:lua:*:*

CVSS Data

CVSS version used by this source: 3.1

3.5LOW

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 31st percentile among its peer group of 51,485 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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

github.com / Kong/lua-multipart/commit/d632e5df43a2928fd537784a99a79dec288bf01b
Patch
github.com / Kong/lua-multipart/pull/34
Issue TrackingPatch
github.com / Kong/lua-multipart/releases/tag/0.5.9-1
PatchRelease Notes
vuldb.com
Permissions RequiredThird Party Advisory
vuldb.com
Third Party Advisory