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
3.4/10

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

EPSS Probability
0.30%

21.5th percentile

Probability of exploitation in the next 30 days. Learn more

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.

Are you affected by CVE-2023-0657?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST