Is CVE-2023-49594 in the CISA KEV catalog?

No. CVE-2023-49594 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-49594?

CVE-2023-49594 has a CVSS v3 base score of 4.5 (MEDIUM).

What is the EPSS score for CVE-2023-49594?

CVE-2023-49594 has an EPSS score of 1.24% (66th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-49594?

Upgrade duouniversalkeycloakauthenticator to 1.0.8 or later.

CVE & CISA-KEV Catalog

CVE-2023-49594

MEDIUM

4.5

CVSS v3

NVD

Description

An information disclosure vulnerability exists in the challenge functionality of instipod DuoUniversalKeycloakAuthenticator 1.0.7 plugin. A specially crafted HTTP request can lead to a disclosure of sensitive information. A user logging into Keycloak using DuoUniversalKeycloakAuthenticator plugin triggers this vulnerability.

CWE-201

How to fix

Remediation Available

duouniversalkeycloakauthenticatorNVD

Affected:< 1.0.8Fixed in:1.0.8CVE-2023-49594derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.24%probability of exploitation in 30 days

66thpercentile

Moderate risk: more likely to be exploited than 66% of all known CVEs.

References

Exploit1

talosintelligence.com

Release Notes1

github.com

Other references1

talosintelligence.com

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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 2025-11-04.