Is CVE-2020-14359 in the CISA KEV catalog?

No. CVE-2020-14359 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-14359?

CVE-2020-14359 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2020-14359?

CVE-2020-14359 has an EPSS score of 0.93% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2020-14359?

No published fix for CVE-2020-14359 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2020-14359

HIGH

7.3

CVSS v3

NVD

Description

A vulnerability was found in all versions of Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) an attacker can bypass our Gatekeeper. Lower case headers are also accepted by some webservers (e.g. Jetty). This means there is no protection when we put a Gatekeeper in front of a Jetty server and use lowercase headers.

CWE-305

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.93%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory1

bugzilla.redhat.com

Third-Party Advisory1

issues.jboss.org

Related Vulnerabilities

Other CWE-305 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-31161	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-10923	High	8.8	85%	-	-
CVE-2023-28126	Medium	5.9	67%	-	-
CVE-2023-34124	Critical	9.8	45%	-	Fix
CVE-2024-37085	Medium	6.8	27%	KEV + Ransom	Fix
CVE-2025-32011	Critical	9.8	22%	-	-

Embed a live status badge for CVE-2020-14359

Markdown

[![CVE-2020-14359](https://tridentstack.com/cve/badge/CVE-2020-14359.svg)](https://tridentstack.com/cve/CVE-2020-14359)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-14359"><img src="https://tridentstack.com/cve/badge/CVE-2020-14359.svg" alt="CVE-2020-14359"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.