Priority MEDIUM 50
Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the SAML or OIDC providers.
CVSS 3.1CRITICAL 10.0· Network · No auth · No interaction · EPSS 0.00691 · Published 2023-07-07 · Fixed in 21.1.2 CWE-81
Priority MEDIUM 47
It was found that the Keycloak Node.js adapter 2.5 - 3.0 did not handle invalid tokens correctly.
CVSS 3.0CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02542 · Published 2017-05-12 · Partial fix · 3.1.0 CWE-253
Priority MEDIUM 41
It was found that keycloak before 3.4.2 final would permit misuse of a client-side /etc/hosts entry to spoof a URL in a password reset request.
CVSS 3.0HIGH 8.8· Network · No auth · User interaction · EPSS 0.01308 · Published 2018-02-21 · Partial fix · 3.4.2.Final, 3.4.2 CWE-602
Priority MEDIUM 40
The org.keycloak.services.resources.SocialResource.callback method in JBoss KeyCloak before 1.0.3.Final allows remote attackers to conduct cross-site request forgery (CSRF) attacks by leveraging lack of CSRF protection.
CVSS 3.0HIGH 8.8· Network · No auth · User interaction · EPSS 0.00816 · Published 2017-10-18 · Fixed in 1.0.3.Final CWE-352
Priority LOW 38
A flaw was found in Keycloak.
CVSS 3.1HIGH 8.1· Network · Low privileges · No interaction · EPSS 0.00562 · Published 2026-07-16 · Fixed in 26.5.3 CWE-284
Priority LOW 38
It was found that the cookie used for CSRF prevention in Keycloak was not unique to each session.
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.02711 · Published 2017-10-26 · Fixed in 3.4.0 CWE-613
Priority LOW 36
JBoss KeyCloak before 1.0.3.Final allows remote attackers to cause a denial of service (resource consumption) via a large value in the size parameter to auth/qrcode, related to QR code generation.
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.01628 · Published 2017-12-29 · Fixed in 1.0.3 CWE-400
Priority LOW 35
A flaw was found in Keycloak.
CVSS 3.1HIGH 7.4· Network · No auth · No interaction · EPSS 0.00396 · Published 2026-09-17 · Fixed in 26.7.4 CWE-294
Priority LOW 34
A flaw was found in the Keycloak REST API before version 8.0.0 where it would permit user access from a realm the user was not configured.
CVSS 3.1HIGH 7.5· Network · Low privileges · No interaction · EPSS 0.0054 · Published 2019-10-15 · Partial fix · 7.0.1 CWE-863
Priority LOW 32
A vulnerability exists in Keycloak's server distribution where enabling debug mode (--debug <port>) insecurely defaults to binding the Java Debug Wire Protocol (JDWP) port to all network interfaces (0.0.0.0).
CVSS 3.1MEDIUM 6.8· Adjacent network · No auth · No interaction · EPSS 0.00425 · Published 2025-11-13 · Fixed in 26.4.4, 26.4.4-1 +1 CWE-1327
Priority LOW 31
A vulnerability was found in Keycloak-services.
CVSS 3.1MEDIUM 5.3· Network · No auth · No interaction · EPSS 0.00616 · Published 2025-08-06 · Partial fix · 26.3.3, 26.0.15-1 +5 CWE-93
Priority LOW 28
A flaw was found in Keycloak.
CVSS 3.1MEDIUM 6.0· Local · Low privileges · User interaction · EPSS 0.00141 · Published 2025-10-28 · Fixed in 26.0.0, 26.2.11-1 +3 CWE-384
Priority LOW 26
It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations.
CVSS 3.0MEDIUM 5.4· Network · Low privileges · User interaction · EPSS 0.01021 · Published 2017-10-26 · Partial fix · 3.4.0 CWE-444
Priority LOW 25
A flaw was found in the Keycloak LDAP User Federation provider.
CVSS 3.1MEDIUM 5.5· Network · High privileges · No interaction · EPSS 0.00472 · Published 2025-11-25 · Fixed in 26.4.6, 26.2.11-1 +5 CWE-502
Priority LOW 24
A flaw was found in Keycloak.
CVSS 3.1MEDIUM 5.4· Network · Low privileges · No interaction · EPSS 0.00301 · Published 2025-10-23 · Fixed in 26.4.3, 26.2.11-1 +4 CWE-613
Priority LOW 24
A flaw was found in Keycloak.
CVSS 3.1MEDIUM 5.4· Network · Low privileges · No interaction · EPSS 0.00235 · Published 2025-10-23 · Fixed in 26.4.1, 26.2.11-1 +2 CWE-613
Priority LOW 23
A flaw was found in org.keycloak/keycloak-model-storage-service.
CVSS 3.1MEDIUM 4.9· Network · High privileges · No interaction · EPSS 0.00536 · Published 2025-08-21 · Fixed in 26.3.4, 26.0.15-1 +6 CWE-526
Priority LOW 23
A flaw was found in Keycloak version 8.0.2 and 9.0.0, and was fixed in Keycloak version 9.0.1, where a malicious user registers as oneself.
CVSS 3.1MEDIUM 4.7· Network · High privileges · No interaction · EPSS 0.00654 · Published 2020-05-04 · Fixed in 9.0.2 CWE-285
Priority LOW 21
It was found that keycloak before version 8.0.0 exposes internal adapter endpoints in org.keycloak.constants.AdapterConstants, which can be invoked via a specially-crafted URL.
CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.00717 · Published 2020-01-08 · Partial fix · 8.0.0 CWE-200
Priority LOW 20
A flaw was found in Keycloak.
CVSS 3.1MEDIUM 4.3· Network · No auth · User interaction · EPSS 0.00324 · Published 2025-09-05 · Fixed in 26.2.9, 26.0.17-1 +5 CWE-79
Priority LOW 18
A flaw was found in Keycloak.
CVSS 3.1LOW 3.7· Network · No auth · No interaction · EPSS 0.00411 · Published 2025-10-28 · Fixed in 26.4.4, 26.4.4-1 +1 CWE-427
Priority LOW 15
A flaw was found in Keycloak’s WebAuthn registration component.
CVSS 3.1LOW 3.1· Network · No auth · User interaction · EPSS 0.0023 · Published 2026-02-27 · Fixed in 26.4.4, 26.2.11-1 +3 CWE-347