CVE-2019-10219

hibernate-validator: safeHTML validator allows XSS

A vulnerability was found in Hibernate-Validator. The SafeHtml validator annotation fails to properly sanitize payloads consisting of potentially malicious code in HTML comments and instructions. This vulnerability can result in an XSS attack.

CVSS 3.1 · 6.1 Medium EPSS 2.2% KEV · Not listed

Vendors

Netapp Oracle Redhat

Products

Active Iq Unified Manager Element Management Services For Element Software And Netapp Hci and 195 more

CVE-2019-14379

jackson-databind: default typing mishandling leading to remote code execution

SubTypeValidator.java in FasterXML jackson-databind before 2.9.9.2 mishandles default typing when ehcache is used (because of net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup), leading to remote code execution.

CVSS 3.1 · 9.8 Critical EPSS 8.0% KEV · Not listed

Vendors

Apple Debian Fasterxml and 4 more

Products

Xcode Debian Linux Jackson-databind and 34 more

CVE-2018-12022

jackson-databind: improper polymorphic deserialization of types from Jodd-db library

An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6. When Default Typing is enabled (either globally or for a specific property), the service has the Jodd-db jar (for database access for the Jodd framework) in the classpath, and an attacker can provide an LDAP service to access, it is possible to make the service execute a malicious payload.

CVSS 3.1 · 7.5 High EPSS 7.3% KEV · Not listed

Vendors

Debian Fasterxml Fedoraproject and 2 more

Products

Debian Linux Jackson-databind Fedora and 17 more

CVE-2026-105302

Keycloak-services: keycloak-services: user session note mapper exposes upstream idp access tokens

A flaw was found in the User Session Note mapper of the Keycloak identity and access management solution. The issue occurs because the mapper does not validate whether a requested session note contains sensitive internal credentials, such as federated access tokens from external identity providers. This allows a delegated client administrator to leak a user's upstream bearer tokens into the tokens issued to their managed application, potentially leading to unauthorized access to the user's data on external platforms.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Red Hat Single Sign On and 1 more

CVE-2026-105306

Keycloak-services: keycloak-services: token introspection audience bypass via dynamic client registration

A flaw was found in the Dynamic Client Registration flow of the Keycloak identity and access management server. The issue occurs because the registration process fails to filter security-sensitive client attributes when a new client is created. An attacker with a valid Initial Access Token can register a client that bypasses audience checks during token introspection. This allows the attacker to view sensitive identity information, roles, and session details from access tokens belonging to other applications in the same realm.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Red Hat Single Sign On and 1 more

CVE-2026-97176

Keycloak-services: keycloak-services: essential acr requirement silently bypassed via cookie authenticator

A flaw was found in the Level of Authentication enforcement mechanism of Keycloak, an identity and access management solution. The issue occurs when a client specifically requires a higher security level for a user who already has an active session at a lower level. Due to a logic error in how session re-evaluations are handled, Keycloak may incorrectly issue a token at the lower security level instead of enforcing the required higher level, potentially allowing unauthorized access to sensitive resources that rely on these security claims.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Red Hat Single Sign On Single Sign-on

CVE-2026-93575

Io.netty/netty-codec-mqtt: netty: resource exhaustion in mqttdecoder

A flaw was found in Netty's MqttDecoder. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted MQTT CONNECT packet. The decoder fails to properly validate the 'Properties Length' against the 'Remaining Length', allowing an attacker to bypass size limits. This leads to excessive memory and CPU consumption, resulting in a denial of service (DoS) due to an OutOfMemoryError.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Io.netty Redhat

Products

Netty-codec-http Amq Broker Build Of Apache Camel For Spring Boot and 6 more

CVE-2026-93560

Io.netty/netty-codec-stomp: netty: stomp codec content-length long-to-int truncation causes infinite decode loop dos

A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceeding the maximum integer value. This integer truncation vulnerability could lead to an infinite decode loop, causing a Denial of Service (DoS) by exhausting memory and CPU resources.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Io.netty Redhat

Products

Netty-codec-http Build Of Apache Camel For Spring Boot Camel Spring Boot and 5 more

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 the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system.

CVSS 3.1 · 7.7 High EPSS 1.2% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Enterprise Linux Keycloak and 6 more

CVE-2026-93494

Io.netty/netty-codec-stomp: netty: bytebuf leak in stompsubframedecoder when a frame body is never terminated

A flaw was found in Netty's StompSubframeDecoder component. A remote attacker can exploit this vulnerability by sending a specially crafted STOMP frame body without its terminating null byte. This causes the decoder to allocate a ByteBuf (a buffer for bytes) that is never released, leading to a permanent memory leak. Over time, this uncontrolled memory consumption can result in a Denial of Service (DoS) for the application using the affected STOMP codec.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Io.netty Redhat

Products

Netty-codec-http Build Of Apache Camel For Spring Boot Camel Spring Boot and 5 more

CVE-2026-93572

Io.netty/netty-codec-redis: netty: redisarrayaggregator nested resp headers multiply patched preallocation limits

A flaw was found in Netty's `RedisArrayAggregator` component. A remote attacker can exploit this vulnerability by sending specially crafted nested Redis (RESP) array headers. This can cause the `RedisArrayAggregator` to eagerly preallocate a large amount of heap memory, leading to heap memory exhaustion and a Denial of Service (DoS) for applications using `RedisDecoder` with `RedisArrayAggregator` on untrusted traffic.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Io.netty Redhat

Products

Netty-codec-http Build Of Apache Camel For Spring Boot Camel Spring Boot and 5 more

CVE-2026-93563

Io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos

A flaw was found in Netty's `SmtpResponseDecoder` component. A remote attacker, acting as a malicious or man-in-the-middle (MITM) SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory accumulation within the client's Java Virtual Machine (JVM) heap, causing an `OutOfMemoryError` and a denial of service (DoS) due to a process crash.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Io.netty Redhat

Products

Netty-codec-http Build Of Apache Camel For Spring Boot Camel Spring Boot and 5 more

CVE-2026-16093

Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned assertion header that tricks the system into thinking the policy requirements have been met. This allows the attacker to authenticate using simpler methods like a client secret even when the administrator has mandated more secure, signed assertions.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid and 5 more

CVE-2026-15945

Keycloak-services: keycloak-services: group hierarchy search discloses hidden parent groups under fgap v2

A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they are not authorized to see. By searching for a child group they have permission to view, the system incorrectly returns the full details of the parent group in the response, leading to the disclosure of sensitive group attributes and configuration.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid and 5 more

CVE-2026-18573

Keycloak-services: keycloak-services: client access-type policy condition bypass during client update

A flaw was found in the keycloak-services component of Keycloak, which is used for managing authentication and authorization flows. The issue occurs when a realm administrator configures client policies to enforce specific authentication requirements on confidential clients. Due to improper evaluation of the client state during an update operation, an attacker with client management permissions can bypass these security policies by first creating a public client and then updating it to a confidential client with weaker authentication. This can result in the persistence of clients that do not comply with the intended security hardening of the realm.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid 8 and 5 more

CVE-2026-18572

Keycloak-services: keycloak-services: uma claim token can override authorization time-policy evaluation attributes

Keycloak provides authorization services that allow administrators to restrict access to resources based on time policies (for example, only allowing access during business hours). A flaw was discovered where a user can include a fake time value in their authorization request that overrides the actual server time. This allows the user to bypass these time-based restrictions and access protected resources at unauthorized times.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid and 5 more

CVE-2026-18571

Keycloak-services: keycloak-services: fgap v2 group assignment bypass during user creation

A flaw was found in the user creation component of Keycloak when Fine-Grained Admin Permissions V2 (FGAP V2) is enabled. This issue allows a sub-administrator with permission to create users to add those users to any group, even groups the sub-administrator is not authorized to manage. This could lead to unauthorized access to sensitive information or elevated privileges for the newly created users.

CVSS 3.1 · 6.6 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid and 5 more

CVE-2026-18570

Keycloak-services: keycloak-services: full-scope-disabled client policy validation bypass via omitted fullscopeallowed

A flaw was found in the full-scope-disabled client-policy executor within the keycloak-services component. This component is responsible for enforcing security policies during client registration and configuration in Red Hat Build of Keycloak. The issue occurs because the executor only validates the fullScopeAllowed field when it is explicitly provided in a request. By omitting this field, a delegated user can bypass the policy, resulting in a client created with full scope access. This allows the client to obtain tokens with unauthorized role mappings.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid and 5 more

CVE-2026-18214

Keycloak-services: keycloak-services: google external access-token exchange bypasses hosted-domain restriction

Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check these domain restrictions. This means an attacker with a valid Google account from a different domain could bypass the security check and gain access to the Keycloak realm.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid and 5 more

CVE-2026-17059

Keycloak-services: keycloak-services: information disclosure via role-users endpoint bypasses per-user view filter

A flaw was found in the role-users endpoint of the keycloak-services library, which is the core component of the Keycloak identity and access management solution. The issue occurs because the system fails to check if an administrator has permission to view individual users when listing members of a role. This allows a restricted administrator to see private information, such as names and email addresses, for users they should not be able to access.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Redhat

Products

Build Keycloak Build Of Keycloak Data Grid and 5 more