How severe is CVE-2023-0105?

CVE-2023-0105 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2023-0105 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0105?

CVE-2023-0105 affects Redhat Keycloak. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0105?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0105 published?

CVE-2023-0105 was published on 2023-01-13 and last updated on 2026-06-17.

CVE-2023-0105

CVE-2023-0105 is a medium-severity vulnerability in Redhat Keycloak with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Redhat Keycloak
Published: 2023-01-13
Last modified: 2026-06-17

Description

A flaw was found in Keycloak. This flaw allows impersonation and lockout due to the email trust not being handled correctly in Keycloak. An attacker can shadow other users with the same email and lockout or impersonate them.

Frequently asked questions

What is CVE-2023-0105?: A flaw was found in Keycloak. This flaw allows impersonation and lockout due to the email trust not being handled correctly in Keycloak. An attacker can shadow other users with the same email and lockout or impersonate them.
How severe is CVE-2023-0105?: CVE-2023-0105 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2023-0105 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0105?: CVE-2023-0105 affects Redhat Keycloak. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0105?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0105 published?: CVE-2023-0105 was published on 2023-01-13 and last updated on 2026-06-17.

References

https://access.redhat.com/security/cve/CVE-2023-0105

Affected products (1)

cpe:2.3:a:redhat:keycloak:-:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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