build_of_keycloak vulnerabilities
CVEs whose affected-version data names the build_of_keycloak package (maven, npm). Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
90 CVEsRSS
CVE-2026-45673Medium· 6.8netty-resolver-dns: Netty DNS resolver: DNS Cache Poisoning via predictable transaction IDs (CVE-2026-45673)
A flaw was found in Netty's DNS resolver component. This vulnerability arises from the use of a predictable pseudo-random number generator (PRNG) for DNS transaction IDs and a static User Datagram Protocol (UDP) source port. This combinati…
CVE-2026-47244Medium· 5.3netty-codec-http2: Netty: Denial of Service via uncontrolled HTTP/2 concurrent streams (CVE-2026-47244)
A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a large number of HTTP/2 stream requests to a Netty HTTP/2 server. If the server does not explicitly limit concurrent s…
CVE-2026-50020Medium· 5.3netty-codec-http: Netty: Data manipulation via request-boundary confusion in HttpObjectDecoder (CVE-2026-50020)
A flaw was found in Netty. The HttpObjectDecoder component, which processes incoming HTTP requests, incorrectly skips certain control characters and whitespace before reading the first request line. This behavior, which goes beyond standar…
CVE-2026-50560Medium· 5.3netty-codec-http2: Netty: Denial of Service due to HTTP/2 max header size handling (CVE-2026-50560)
A flaw was found in Netty, a network application framework. A remote attacker can exploit a vulnerability in the HTTP/2 (Hypertext Transfer Protocol version 2) maximum header size handling. By sending a specific SETTINGS_MAX_HEADER_LIST_SI…
CVE-2026-33244Medium· 5.4react-router: React Router: Cross-Site Scripting (XSS) via improper HTTP Location header neutralization (CVE-2026-33244)
A flaw was found in react-router. When using Framework Mode with pre-rendering enabled, an attacker can exploit improper handling of the HTTP `Location` header value. This can lead to Cross-Site Scripting (XSS), allowing malicious scripts …
CVE-2026-9796Medium· 6.5A flaw was found in Keycloak
A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their…
CVE-2026-9798Medium· 4.3A flaw was found in Keycloak, an open-source identity and access management solution
A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initi…
CVE-2026-9793Medium· 5.9A flaw was found in Keycloak
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This …
CVE-2026-9689Medium· 4.2A flaw was found in Keycloak, an open-source identity and access management solution
A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers (URIs), a remote attacker can manipulate the authenticati…
CVE-2026-7507High· 7.5A session fixation vulnerability was found in Keycloak's login-actions endpoints
A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted lin…
CVE-2026-7307High· 7.5A flaw was found in Keycloak
A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation…
CVE-2026-4634High· 7.5A flaw was found in Keycloak
A flaw was found in Keycloak. An unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with an excessively long scope parameter to the OpenID Connect (OIDC) token endpoint. This leads to high…
CVE-2026-33228Critical· 9.8flatted is a circular JSON parser
flatted is a circular JSON parser. Prior to version 3.4.2, the parse() function in flatted can use attacker-controlled string values from the parsed JSON as direct array index keys, without validating that they are numeric. Since the int…
CVE-2026-2575Medium· 5.3A flaw was found in Keycloak
A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service (DoS) by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limi…
CVE-2026-2603High· 8.1A flaw was found in Keycloak
A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attac…
CVE-2026-2092High· 7.7A flaw was found in Keycloak
A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML asserti…
CVE-2026-2366Low· 3.1A flaw was found in Keycloak
A flaw was found in Keycloak. An authorization bypass vulnerability in the Keycloak Admin API allows any authenticated user, even those without administrative privileges, to enumerate the organization memberships of other users. This inf…
CVE-2026-3429Medium· 4.2A flaw was identified in the Account REST API of Keycloak that allows a user authenticated at a lower security level to perform sensitive actions intended only for higher-assurance sessions
A flaw was identified in the Account REST API of Keycloak that allows a user authenticated at a lower security level to perform sensitive actions intended only for higher-assurance sessions. Specifically, an attacker who has already obta…
CVE-2026-3009High· 8.1A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator
A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can…
CVE-2025-12150Low· 3.1A flaw was found in Keycloak’s WebAuthn registration component
A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object wit…
CVE-2025-3910Medium· 5.4A flaw was found in Keycloak
A flaw was found in Keycloak. The org.keycloak.authorization package may be vulnerable to circumventing required actions, allowing users to circumvent requirements such as setting up two-factor authentication.
CVE-2025-0604Medium· 5.4A flaw was found in Keycloak
A flaw was found in Keycloak. When an Active Directory user resets their password, the system updates it without performing an LDAP bind to validate the new credentials against AD. This vulnerability allows users whose AD accounts are ex…
CVE-2024-12397High· 7.4A flaw was found in Quarkus-HTTP, which incorrectly parses cookies with certain value-delimiting characters in incoming requests
A flaw was found in Quarkus-HTTP, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoo…
CVE-2024-10234Medium· 6.1⚠ Exploited0dayA vulnerability was found in Wildfly, where a user may perform Cross-site scripting in the Wildfly deployment system
A vulnerability was found in Wildfly, where a user may perform Cross-site scripting in the Wildfly deployment system. This flaw allows an attacker or insider to execute a deployment with a malicious payload, which could trigger undesired…
CVE-2024-3656High· 8.1PoCA flaw was found in Keycloak
A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading t…
CVE-2024-8883Medium· 6.1PoCA misconfiguration flaw was found in Keycloak
A misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1, enabling sensitive information such as author…
CVE-2024-7341High· 7.1A session fixation issue was discovered in the SAML adapters provided by Keycloak
A session fixation issue was discovered in the SAML adapters provided by Keycloak. The session ID and JSESSIONID cookie are not changed at login time, even when the turnOffChangeSessionIdOnLogin option is configured. This flaw allows an …
CVE-2024-7885High· 7.5A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests
A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTT…
CVE-2024-4540High· 7.5A flaw was found in Keycloak in OAuth 2.0 Pushed Authorization Requests (PAR)
A flaw was found in Keycloak in OAuth 2.0 Pushed Authorization Requests (PAR). Client-provided parameters were found to be included in plain text in the KC_RESTART cookie returned by the authorization server's HTTP response to a `request…
CVE-2024-1132High· 8.1A flaw was found in Keycloak, where it does not properly validate URLs included in a redirect
A flaw was found in Keycloak, where it does not properly validate URLs included in a redirect. This issue could allow an attacker to construct a malicious request to bypass validation and access other URLs and sensitive information withi…