Keycloak

A row-count mismatch in Keycloak when using MySQL or MariaDB in stateless mode allows attackers to bypass replay protection for single-use security artifacts like JWT client assertions, DPoP proofs, or TOTP codes.

An unauthenticated denial-of-service vulnerability in Keycloak (CVE-2026-79651) allows attackers to exhaust server memory by injecting arbitrary locale tags into an unbounded cache.

A vulnerability in Keycloak's Dynamic Client Registration component allows authenticated users with an Initial Access Token to forge administrative roles via improper claim validation.

This brief describes how attackers exploit vulnerabilities in web applications to execute suspicious shell commands via web server processes on Linux, enabling persistence, discovery, credential access, and reverse shell establishment, which can lead to full system compromise and data exfiltration.

This rule detects unusual child process executions originating from web server processes on Linux systems, which attackers may use to maintain persistence on a compromised system by exploiting web server vulnerabilities.

Identifies suspicious command executions via a web server on Linux systems, which may suggest a vulnerability and remote shell access.

A vulnerability in Keycloak versions prior to 26.2.14, 26.4.10, and 26.5.5 allows an attacker to cause a breach of data confidentiality and bypass the security policy, as tracked by CVE-2026-2092.

An anonymous, remote attacker can exploit a vulnerability in Keycloak to send arbitrary emails, potentially leading to phishing or social engineering attacks.