How severe is CVE-2021-3461?

CVE-2021-3461 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-3461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3461?

CVE-2021-3461 primarily affects Redhat Keycloak. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-3461?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-3461 published?

CVE-2021-3461 was published on 2022-04-01 and last updated on 2026-06-17.

CVE-2021-3461

CVE-2021-3461 is a high-severity vulnerability in Redhat Keycloak with a CVSS 3.x base score of 7.1. 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-613.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 3.3
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Redhat Keycloak
Published: 2022-04-01
Last modified: 2026-06-17

Description

A flaw was found in keycloak where keycloak may fail to logout user session if the logout request comes from external SAML identity provider and Principal Type is set to Attribute [Name].

Frequently asked questions

What is CVE-2021-3461?: A flaw was found in keycloak where keycloak may fail to logout user session if the logout request comes from external SAML identity provider and Principal Type is set to Attribute [Name].
How severe is CVE-2021-3461?: CVE-2021-3461 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-3461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3461?: CVE-2021-3461 primarily affects Redhat Keycloak. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-3461?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-3461 published?: CVE-2021-3461 was published on 2022-04-01 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1941565

Affected products (4)

cpe:2.3:a:redhat:keycloak:9.0.13:*:*:*:*:*:*:*
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:single_sign-on:7.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:single_sign-on:7.4.7:*:*:*:*:*:*:*

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