CVE-2023-0657
LOWCVSS 3.4/10EPSS 0.30%
Last modified
CVE-2023-0657 is a low-severity vulnerability rated 3.4/10 on the CVSS scale. A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2023-0657?
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.
How severe is CVE-2023-0657?
CVE-2023-0657 has a CVSS score of 3.4/10 (LOW severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2023-0657?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-0657?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST