Red Hat Single Sign-On 7 vulnerabilities
139 known vulnerabilities in Red Hat Single Sign-On 7 from Red Hat. 139 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.
Latest first
- 7.5 High severity
Red Hat build of Apache Camel for Spring Boot 4: Allocation of Resources Without Limits or Throttling
Undertow is a flexible performant web server used in JBoss EAP and WildFly. A flaw was found in how Undertow handles WebSocket connections. Specifically, certain configuration limits like message buffer sizes and session timeouts cannot be adjusted and default
- 7.5 High severity
Red Hat JBoss Enterprise Application Platform…: Allocation of Resources Without Limits or Throttling
A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuff
- 7.4 High severity
Red Hat Build of Apache Camel 3.33.3.SP2: Improper Handling of Alternate Encoding
A flaw was found in WildFly Elytron. Password hashing and verification normalize input with Unicode NFKC, which can collapse fullwidth characters to ASCII equivalents. A remote attacker can more easily guess affected passwords by using an ASCII-only dictionary
- 7.3 High severity
Red Hat build of Keycloak 26.6: Predictable from Observable State
A flaw was found in the legacy client-initiated account-linking endpoint of Keycloak, a widely used open-source identity and access management solution. The mechanism used to protect the account-linking process from unauthorized requests relies on a hash that
- 9.1 Critical severity
Red Hat build of Keycloak 26.4: Weak Password Recovery Mechanism for Forgotten Password
A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for an
- 7.5 High severity
Red Hat JBoss Enterprise Application Platform…: Memory Allocation with Excessive Size Value
A flaw was found in Wildfly. A remote unauthenticated attacker can trigger OutOfMemoryError as CSIv2Util's GSS token decoder reads an attacker-controlled length field without bounds checking and attempts to allocate a byte array of that size.
- 7.5 High severity
Red Hat JBoss Enterprise Application Platform…: Buffer Copy without Checking Size of Input
A flaw was found in Undertow. A remote attacker can cause Out of Memory on websockets endpoint without authentication on any @ServerEndpoint class that has any @OnMessage method. This allows an attacker to cause Denial of Service attack without authentication
- 8.1 High severity
Red Hat Build of Keycloak: Authentication Bypass by Capture-replay
A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker
- 9.8 Critical severity
Red Hat build of Keycloak 26.4: Origin Validation Error
A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs because the IdP-initiated Single Sign-On endpoint fails to check if a provider is restricted to account linking onl
- 8.1 High severity
Red Hat build of Keycloak 26.4: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
A flaw was found in the Dynamic Client Registration (DCR) component of Keycloak, an identity and access management solution. The default DCR policy fails to properly validate the claim path for User Property mappers, allowing them to write values to sensitive
- 8.1 High severity
Red Hat build of Keycloak 26.4: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
A flaw was found in Keycloak's Authorization Services. The component responsible for matching request paths to security policies (PathMatcher) does not properly normalize URIs before comparison. By adding extra characters like a trailing slash or matrix parame
- 9.1 Critical severity
Red Hat build of Keycloak 26.4: Improper Verification of Cryptographic Signature
A flaw was found in the SAML metadata import functionality of the keycloak-services component, which is the core engine for identity brokering in Red Hat Build of Keycloak. When importing identity provider metadata that lacks specific usage attributes for keys
- 7.2 High severity
Red Hat build of Keycloak 26.6: Missing Authorization
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
- 8.1 High severity
Red Hat build of Keycloak 26.6: Improper Authentication
Keycloak provides a way to let users log in using Microsoft accounts while restricting access to a specific organization (tenant). A flaw was discovered where this restriction is ignored when using the token exchange feature. This means an attacker with a vali
- 8.1 High severity
Red Hat build of Keycloak 26.6: Missing Authorization
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
- 8.1 High severity
Red Hat build of Keycloak 26.6: Improper Verification of Cryptographic Signature
A flaw was found in Keycloak. This JWT algorithm confusion vulnerability in the JWT Authorization Grant flow allows an attacker with valid client credentials to bypass signature verification. By forging an assertion, the attacker can create unauthorized access
- 8.1 High severity
Red Hat build of Keycloak 26.4: Comparison Using Wrong Factors
A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access (UMA) permission checks. By including the configured access-denied page path wit
- 7.6 High severity
AngularJS: Incomplete Filtering of Special Elements
A flaw in AngularJS' Strict Contextual Escaping (SCE) logic allows bypassing certain SCE policies for resource URLs and can lead to arbitrary JavaScript execution within the context of the victim's browser session. SCE's purpose is to ensure that only trusted
- 8.1 High severity
jackson-databind: Incomplete List of Disallowed Inputs
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only
- 7.5 High severity
netty: Uncontrolled Resource Consumption
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an
- 7.5 High severity
netty: Improper Verification of Cryptographic Signature
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SimpleTrustManagerFactory.engineGetTrustManagers() and related paths wrap any user-supplied plain X509TrustManager in X5
- 7.5 High severity
netty: Missing Release of Memory after Effective Lifetime
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a synta
- 7.5 High severity
netty: Uncontrolled Resource Consumption
Netty is a network application framework for development of protocol servers and clients. In netty-codec-http2 prior to versions 4.1.135.Final and 4.2.15.Final, the `DelegatingDecompressorFrameListener` class orchestrates HTTP/2 decompression by embedding a pe
- 7.5 High severity
netty: Missing Release of Memory after Effective Lifetime
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes
- 10.0 Critical severity
netty: Insufficient Verification of Data Authenticity
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's `DnsResolveContext` insufficiently validates the bailiwick of NS records, enabling DNS Cache Poisoning. An attac
- 7.5 High severity
netty: Allocation of Resources Without Limits or Throttling
Netty is a network application framework for development of protocol servers and clients. In versions of netty-transport-sctp prior to 4.1.135.Final and 4.2.15.Final, for each non-complete SctpMessage fragment the handler does `fragments.put(streamId, Unpooled
- 10.0 Critical severity
netty: Insufficient Verification of Data Authenticity
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DnsResolveContext fails to validate the origin (bailiwick) of CNAME records in DNS responses. Versions 4.1.135.F
- 7.5 High severity
netty: Allocation of Resources Without Limits or Throttling
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SslClientHelloHandler.decode() reads the 24-bit TLS handshake length and, when the ClientHello does not fit in the first
- 7.5 High severity
netty: Improper Check or Handling of Exceptional Conditions
Netty is a network application framework for development of protocol servers and clients. In netty-codec-haproxy prior to versions 4.1.135.Final and 4.2.15.Final, when decoding a PP2_TYPE_SSL TLV, HAProxyMessage.readNextTLV() first calls `header.retainedSlice(
- 8.8 High severity
A further incomplete fix for a previous advisory CVE-2026-44417 (Untrusted JMS configuration…
A further incomplete fix for a previous advisory CVE-2026-44417 (Untrusted JMS configuration can lead to RCE) for Apache CXF has been identified, which can allow code execution capabilities, if untrusted users are allowed to configure JMS for Apache CXF. Users
- 9.8 Critical severity
Apache CXF: Improper Restriction of XML External Entity Reference
Apache CXF's EndpointReferenceUtils and W3CMultiSchemaFactory classes construct a SAXParserFactory without the necessary JAXP hardening configurations, enabling out-of-band (OOB) external entity resolution. Users are recommended to upgrade to versions 4.2.2 or
- 7.5 High severity
netty: Uncontrolled Resource Consumption
Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending crafted Redis payloads across multiple connections without `\r
- 7.5 High severity
netty: Uncontrolled Resource Consumption
Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending a crafted Redis payload with deeply nested arrays. This forces
- 8.1 High severity
netty: Improper Access Control
Netty is a network application framework for development of protocol servers and clients. In netty-handler prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can bypass IPv6 subnet rules due to an incorrect masking operation in IpSubnetFilterRule.co
- 7.5 High severity
The fix for CVE-2025-48913: Apache CXF: Untrusted JMS configuration can lead to RCE was not…
The fix for CVE-2025-48913: Apache CXF: Untrusted JMS configuration can lead to RCE was not complete, meaning that another path in the code might lead to code execution capabilities, if untrusted users are allowed to configure JMS for Apache CXF. Users are rec
- 7.5 High severity
netty: Uncontrolled Resource Consumption
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariabl
- 7.5 High severity
netty: Uncontrolled Resource Consumption
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpContentDecompressor accepts a maxAllocation parameter to limit decompression buffer size and prevent decompression bomb attacks. This limit is co
- 9.1 Critical severity
netty: Inconsistent Interpretation of HTTP Requests
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpClientCodec pairs each inbound response with an outbound request by queue.poll() once per response, including for 1xx. If the client pipelines GE
- 9.8 Critical severity
netty: Inconsistent Interpretation of HTTP Requests
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for
- 9.1 Critical severity
Netty is an asynchronous, event-driven network application framework.
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's DNS codec does not enforce RFC 1035 domain name constraints during either encoding or decoding. This creates a bidirectional attack surface: