CVE-2023-0091

LOW

3.8

CVSS Score

Published: January 11, 2023 at 08:44 PM UTC

Updated: June 17, 2026 at 05:24 AM UTC

2 products affected across 2 vendorsKeycloakSingle Sign on

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Severity

LOW3.8

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

A flaw was found in Keycloak, where it did not properly check client tokens for possible revocation in its client credential flow. This flaw allows an attacker to access or modify potentially sensitive information.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Keycloak · Keycloak

95%

All versions

redhat-single-sign-on (environment)

Single Sign on · Red Hatrpmdevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://access.redhat.com/security/cve/CVE-2023-0091

References (1)

Vendor Advisory

Source: [email protected]

https://access.redhat.com/security/cve/CVE-2023-0091

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.8LOWCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-863

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