keycloak: redirect_uri validation bypass

A flaw was found in the redirecturi validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users...

keycloak: offline session token DoS

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

keycloak: offline session token DoS

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

keycloak: redirect_uri validation bypass

A flaw was found in the redirecturi validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users...

Important: Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 security update on RHEL 8

New Red Hat Single Sign-On 7.6.6 packages are now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

keycloak: reflected XSS via wildcard in OIDC redirect_uri

A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting XSS or further attacks. This flaw is the result of an incomple...

keycloak: offline session token DoS

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

keycloak: reflected XSS via wildcard in OIDC redirect_uri

A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting XSS or further attacks. This flaw is the result of an incomple...

Important: Red Hat Security Advisory: Red Hat Single Sign-On 7.6.6 security update on RHEL 9

New Red Hat Single Sign-On 7.6.6 packages are now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

keycloak: redirect_uri validation bypass

A flaw was found in the redirecturi validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users...

GHSA-54F3-C6HG-865H Allocation of Resources Without Limits in Keycloak

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

Allocation of Resources Without Limits in Keycloak

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

CVE-2023-6563

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

Memory corruption

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

CVE-2023-6563 Keycloak: offline session token dos

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

CVE-2023-6563

CVE-2023-6563 is an offline-session DoS vulnerability in Keycloak/Red Hat SSO. Exploitation arises when an attacker triggers the admin UI by opening the consents tab after creating multiple user sessions, causing massive offline session load and resource exhaustion. The issue is acknowledged in R...

CVE-2023-6563 Keycloak: offline session token dos

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

CVE-2023-6563

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens 500,000 users with each having at least 2 saved sessions. If an attacker creates two or more user sessions and then open the "consents" tab of th...

CVE-2023-6291

A flaw was found in the redirecturi validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users. Mitigation Mitigation for this issue...

PT-2023-32538 · Red Hat · Keycloak

Name of the Vulnerable Software and Affected Versions: Keycloak affected versions not specified Description: A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially...