CVE-2026-9795

A flaw was found in Keycloak's Fine-Grained Admin Permissions FGAPv2 feature. An administrator with limited client management permissions can exploit this vulnerability to assign any realm role, including highly privileged roles, to a client's scope mapping. This bypasses intended security...

Time-of-check Time-of-use (TOCTOU) Race Condition

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the role rename endpoint. An attacker can gain unauthorize...

Incorrect Privilege Assignment

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Incorrect Privilege Assignment via improper enforcement of scope mapping in the Fine-Grained Admin Permission...

PT-2026-44187

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description An authenticated administrator possessing the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU flaw—a race condition where a system checks a condition and then uses the...

PT-2026-44186

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists in the Fine-Grained Admin Permissions FGAPv2 feature. An administrator with limited client management permissions can assign any realm role, including highly privileged ones, t...

Keycloak 安全漏洞

Keycloak is an open-source identity and access management solution developed by Keycloak itself. There is a security vulnerability in Keycloak. This vulnerability stems from the fact that authenticated administrators with the manage-clients role can exploit the vulnerability in the name-based...

keycloak: org.keycloak.authorization: Keycloak: Information disclosure via broken access control in user lookup endpoint

A flaw was found in Keycloak. A broken access control vulnerability in the Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access UMA resource, to enumerate and harvest personally identifiable information PII for all realm users. By...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ceph: Avoid putting the realm twice when decoding snaps fails. When decoding snaps fails, it might leave the firstrealm and realm pointing to the same snaprealm memory. Doing so could lead to random use-after-free issues, BUGON,...

Astra Linux – Vulnerability in Firefox

A use-after-free could occur if a JavaScript realm was being initialized when a garbage collection started. This vulnerability affects Firefox versions earlier than 125...

Astra Linux – Vulnerability in Tomcat9

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protections provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Handle invalid large leaf mappings correctly It has been possible for a long time to mark ptes in the linear map as invalid. This is done for secretmem, kfence, realm dma memory un/share, and others, by simply clearing...

Astra Linux – Vulnerability in Firefox

Under certain circumstances, calling the bind function might result in an incorrect realm being assigned. This could create a vulnerability related to JavaScript-implemented sandboxes, such as SES. This vulnerability affects Firefox for Android 112, Firefox 112, and Focus for Android 112...

Astra Linux - уязвимость в tomcat9

Improper handling of the case sensitivity vulnerability in LockOutRealm in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, and from 7.0.0 through 7.0.109. Older, unsupported...

Astra Linux – Vulnerability in Firefox and Thunderbird

If an out-of-memory condition occurs when creating a JavaScript global, the JavaScript realm may be deleted, while references to it still exist in the BaseShape. This could lead to a use-after-free situation, potentially causing a exploitable crash. This vulnerability affects Firefox ESR 102.5,...

GHSA-4X37-HW65-52W8 Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect OIDC token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other...

CVE-2026-4630

A flaw was found in Keycloak. An authenticated client could exploit an Insecure Direct Object Reference IDOR vulnerability in the Authorization Services Protection API endpoint. By knowing or obtaining a resource's unique identifier UUID belonging to another Resource Server within the same realm,...

CVE-2026-37978 Keycloak: org.keycloak.services: keycloak: information disclosure via evaluate-scopes admin api

A flaw was found in Keycloak. A low-privilege administrator with the 'view-clients' role can exploit this by invoking the 'evaluate-scopes' Admin API endpoints with an arbitrary user ID userId parameter. This vulnerability allows for cross-role personally identifiable information PII leakage,...

CVE-2026-37978

A flaw was found in Keycloak. A low-privilege administrator with the 'view-clients' role can exploit this by invoking the 'evaluate-scopes' Admin API endpoints with an arbitrary user ID userId parameter. This vulnerability allows for cross-role personally identifiable information PII leakage,...

CVE-2026-37981 Keycloak: org.keycloak.authorization: keycloak: information disclosure via broken access control in user lookup endpoint

A flaw was found in Keycloak. A broken access control vulnerability in the Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access UMA resource, to enumerate and harvest personally identifiable information PII for all realm users. By...

CVE-2026-37981

Keycloak CVE-2026-37981 describes a broken access control in the Account Resources user lookup endpoint, where a remote authenticated user owning at least one UMA resource can enumerate and harvest PII for all realm users by sending crafted requests with arbitrary usernames or emails. The endpoin...