Cyber Resilience

CVE-2023-49594

MediumPublic PoC

Published: 23 December 2023

Published
23 December 2023
Modified
04 November 2025
KEV Added
Patch
CVSS Score v3.1 4.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0010 27.8th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-49594 is a medium-severity Insertion of Sensitive Information Into Sent Data (CWE-201) vulnerability in Michaelkelly Duouniversalkeycloakauthenticator. Its CVSS base score is 4.5 (Medium).

Operationally, ranked at the 27.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

michaelkelly
duouniversalkeycloakauthenticator
≤ 1.0.8

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-201

Embedding taints allows detection when sensitive data is inserted into outbound or sent data streams.

References