CVE-2023-0657

low-risk
Published 2024-11-17

A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.4/10 Low
ADJACENT_NETWORK / HIGH complexity
14
/ 100
low-risk
Severity 9/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal