CVE-2022-4137

CVE-2022-4137 is a reflected XSS in Keycloak’s oob OAuth endpoint caused by incorrect null-byte handling. A malicious link can insert an arbitrary URI into a Keycloak error page, and exploitation requires user interaction, potentially compromising user details. Connected sources identify this vul...

CVE-2023-44487

CVE-2023-44487 – HTTP/2 Rapid Reset DoS Root cause: HTTP/2 stream resets can cause servers to continue processing, leading to unbounded resource consumption and potential DoS when clients rapidly cancel streams. What’s affected: Various HTTP/2 implementations and deployments, including servers, p...

CVE-2023-48795

CVE-2023-48795 is referenced across several connected advisories, detailing affected packages and required upgrades. Astra Linux/CBL-Mariner entries note: podman (<5.6.1-2) needs upgrade, erlang (<25.2-1), libssh2 (<1.11.1-1), libssh (<0.10.6-1), terraform (<1.3.2-25), kubevirt (&l...

CVE-2022-4039

CVE-2022-4039 affects Red Hat Single Sign-On for OpenShift container images where an unsecured management interface is enabled. Connected sources describe the flaw as allowing an attacker to use the management interface to deploy malicious code and to access/modify potentially sensitive informati...

CVE-2023-1108

CVE-2023-1108 affects Undertow within Red Hat JBoss EAP 7.3.x (SSLConduit) where an infinite loop on close can cause DoS. Connected RHSA-2025-9583 confirms the issue and indicates a fix in the eap-7.3.z line (Patched Undertow). Remediation is to upgrade to the patched EAP 7.3.x release (eap-7.3.z...

CVE-2023-2585

CVE-2023-2585 concerns Keycloak’s Device Authorization Grant, where flawed validation of device_code and client_id could allow a malicious OAuth client to spoof a consent request and trick an admin into granting access to other OAuth clients or cause unauthorized access. Connected sources corrobo...

CVE-2021-3827

CVE-2021-3827 concerns Keycloak where the default ECP binding flow can bypass other authentication flows, enabling an attacker to bypass MFA by sending a SOAP AuthnRequest with an Authorization header containing user credentials. Exploitation affects confidentiality and integrity as described in ...

CVE-2021-4104

CVE-2021-4104 affects JMSAppender in Log4j 1.2 when it is explicitly configured to use JMSAppender. A deserialization of untrusted data can occur if an attacker can write Log4j configuration and supply TopicBindingName and TopicConnectionFactoryBindingName, causing JMSAppender to perform JNDI req...

CVE-2019-9514

CVE-2019-9514 corresponds to an HTTP/2 vulnerability where an attacker floods a peer by sending HEADERS frames, causing unbounded memory growth and potential DoS. Public details in connected advisories show affected stacks include Go HTTP/2 implementations and Go-based tools, with remediation via...

CVE-2023-3223

CVE-2023-3223 relates to Undertow: Servlets annotated with @MultipartConfig may cause an OutOfMemoryError from large multipart content, enabling remote DoS. A bypass may occur if fileSizeThreshold limits are configured but the file name in the request is set to null. The Nessus plugin notes an un...

CVE-2019-9515

CVE-2019-9515 concerns an HTTP/2 settings flood that can cause memory/CPU exhaustion. Arista’s security advisory (Security Advisory 0043) states the vulnerability is in Go’s gRPC HTTP/2 usage and can affect TerminAttr, OpenConfig, CVP, and certain Wi‑Fi OpenConfig-enabled components when enabled....

CVE-2024-1132

Keycloak path traversal vulnerability (CVE-2024-1132) arises from improper validation of redirect URLs, enabling an attacker to bypass validation and access other URLs within the domain when a client uses wildcard Valid Redirect URIs. The issue requires user interaction and affects clients with w...

CVE-2023-6927

CVE-2023-6927 describes a Keycloak flaw where an attacker could steal authorization codes or tokens from clients that use a wildcard in the JARM response mode "form_post.jwt", potentially bypassing the security patch for CVE-2023-6134. The metric indicates a MEDIUM severity (CVSS v3.1 base score ...

CVE-2024-7885

CVE-2024-7885 affects Undertow's ProxyProtocolReadListener, where parseProxyProtocolV1 reuses a single StringBuilder across multiple requests, potentially leaking data between requests on the same HTTP connection and, in multi-request environments, exposing previous values. The connected Red Hat ...

CVE-2018-12023

The CVE-2018-12023 issue affects FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6. When Default Typing is enabled (globally or per-property) and the Oracle JDBC jar is in the classpath with an LDAP service accessible to an attacker, the service could be coerced into executing a ma...

CVE-2024-7341

CVE-2024-7341 describes a session fixation flaw in Keycloak’s SAML adapters (Elytron SAML) where the session ID and JSESSIONID cookie are not rotated on login, even with turnOffChangeSessionIdOnLogin enabled. This allows an attacker who hijacks the current session before authentication to trigger...

CVE-2019-10184

Undertow (the web server component referenced for CVE-2019-10184) is affected up to version 2.0.23.Final. The issue is an information exposure where web apps’ directory structures can be predicted through API requests made without trailing slashes, enabling partial confidentiality leakage. The li...

CVE-2022-3916

CVE-2022-3916 affects Keycloak via the offline_access scope. The flaw arises from missing root-session validation and reuse of session IDs between root and user authentication sessions, enabling an attacker to resolve a user session attached to a previously authenticated user; using the refresh t...

CVE-2023-0264

CVE-2023-0264 concerns an improper authentication flaw in Keycloak’s OpenID Connect user authentication, potentially allowing impersonation and new session token generation. The connected documents include a GitHub PoC (Exploit for Improper Authentication in Redhat Keycloak) describing a session ...

CVE-2021-3629

CVE-2021-3629 affects Undertow. The vulnerability is a flow-control handling issue over HTTP/2 that may cause overhead or a denial of service, impacting availability. Affected versions are Undertow prior to 2.0.40.Final and prior to 2.2.11.Final. Remediation: upgrade to Undertow 2.0.40.Final or 2...

CVE-2021-3690

CVE-2021-3690 affects Undertow: a buffer leak on the incoming WebSocket PONG message can cause memory exhaustion leading to DoS. The vulnerability impacts Undertow-based components (WebSocket handling). A security update/patch for Undertow is available per OSV/OESA entries; exploit details are no...

CVE-2024-8883

CVE-2024-8883 : In Keycloak, a misconfiguration of the Valid Redirect URI allows open redirects when set to http://localhost or http://127.0.0.1. This can expose authorization codes and potentially enable session hijacking. The connected document (Keycloak open redirect) confirms the affected com...

CVE-2019-14379

CVE-2019-14379 affects FasterXML jackson-databind prior to 2.9.9.2, where default typing mishandling when ehcache is present (via net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup) leads to remote code execution. Affected component is jackson-databind’s data-binding implementatio...

CVE-2019-10219

The CVE-2019-10219 entry affects Hibernate Validator: SafeHtml validator annotation fails to sanitize HTML comments/instructions, enabling XSS in affected code paths. Affected CP4S versions are 1.7.2.0, 1.8.0.0, and 1.8.1.0. Remediation is to upgrade to Cloud Pak for Security 1.9.0.0 per IBM guid...

CVE-2019-14900

CVE-2019-14900 affects Hibernate ORM prior to 5.3.18, 5.4.18, and 5.5.0.Beta1. The flaw is a SQL injection in the JPA Criteria API implementation that can permit unsanitized literals in the SELECT or GROUP BY clauses, enabling an attacker to access unauthorized information. The connected document...

CVE-2022-0084

CVE-2022-0084 affects XNIO: the notifyReadClosed path logs to the opposite end, enabling an attacker to send malformed requests that may cause log contention or disk space exhaustion. Connected docs confirm this root cause and cite IBM/Red Hat advisories linking the CVE to XNIO, with remediation ...

CVE-2024-1635

Undertow vulnerability CVE-2024-1635 affects servers supporting the wildfly-http-client protocol. The issue arises during HTTP upgrade to remoting: WriteTimeoutStreamSinkConduit is not notified when a RemotingConnection is closed, causing timeout tasks to leak and accumulate, which leaks connecti...

CVE-2023-6841

Keycloak Denial of Service (CVE-2023-6841) is triggered by unbounded attributes per object; a remote attacker can exhaust resources by sending crafted HTTP requests, causing DoS. Public details describe impact as availability loss with high CVSS, and remediation guidance points to upgrading to Ke...

CVE-2023-6291

Technical details about CVE-2023-6291 are not publicly available in the provided documents. Monitor for updates from Red Hat/Keycloak advisories for affected products, versions, and patches.

CVE-2021-3859

CVE-2021-3859 corresponds to an Undertow flaw that triggers a client-side invocation timeout for certain HTTP/2 calls, enabling denial-of-service conditions. Connected advisories (e.g., RHSA-2024:10207) explicitly reference Undertow and cite the issue as the cause for DoS when HTTP2 client invoca...

CVE-2022-1274

CVE-2022-1274 is referenced in Red Hat advisories RHSA-2023-1043/1044 as a fix for Red Hat Single Sign-On 7.6.2 on RHEL 7/8/9. The vulnerability is linked to Keycloak’s execute-actions-email flow, with the cited issue being a missing email notification template allowlist that can enable an XSS-li...

CVE-2021-3717

CVE-2021-3717 affects WildFly; root cause is an incorrect JBOSS_LOCAL_USER challenge location when using the elytron configuration, potentially allowing access to all local users. The issue impacts wildfly-core versions prior to 17.0 and has confidentiality, integrity, and availability implicatio...

CVE-2022-2764

CVE-2022-2764 concerns Undertow. A DoS can occur because the Undertow server waits for LAST_CHUNK forever during EJB invocations, impacting availability (per CVSS vector: Network, Low access, High impact to availability). Public details in the provided documents specify the vulnerability as a DoS...

CVE-2021-3597

CVE-2021-3597 affects Undertow’s HTTP2SourceChannel and can cause DoS by failing to write the final frame. Affected products/versions include Undertow releases prior to 2.0.35.SP1, 2.2.6.SP1, 2.2.7.SP1, 2.0.36.SP1, 2.2.9.Final and 2.0.39.Final. The vulnerability is addressed in Red Hat JBoss EAP ...

CVE-2023-6134

CVE-2023-6134 is a vulnerability in Keycloak-based Red Hat Single Sign-On (SSO) implementations, disclosed by OSV entries tied to RHSA advisories. The issue is a reflected XSS via a wildcard in the OIDC redirect_uri, arising from an incomplete fix for CVE-2020-10748. The connected docs confirm th...

CVE-2020-10719

Undertow under CVE-2020-10719 is vulnerable in versions before 2.1.1.Final due to improper handling of invalid HTTP requests with large chunk sizes, enabling HTTP request smuggling. Several connected sources (Red Hat advisories, Mageia security advisory) confirm a fix/update to Undertow 2.1.1.Fin...

CVE-2020-10687

The CVE-2020-10687 entry applies to Undertow: all versions before Undertow 2.2.0.Final are affected. The issue arises from HTTP request parsing that permits invalid characters in the request line, enabling HTTP request smuggling across HTTP/1.x and HTTP/2. Consequences documented include web-cach...

CVE-2019-14885

The CVE affects Red Hat JBoss Enterprise Application Platform (EAP) Vault system: in all versions prior to 7.2.6.GA, the security attribute value of a system property can be revealed in the JBoss EAP log when a CLI reload is executed. This results in exposure of confidential information. Root cau...

CVE-2023-5379

CVE-2023-5379 affects Undertow/AJP handling in Red Hat JBoss EAP, where an AJP request exceeding the max-header-size can cause mod_cluster to mark the backend as an error and close the TCP connection without an AJP response, enabling potential DoS via repeated oversized requests. The connected ad...

CVE-2019-10212

CVE-2019-10212 affects Undertow (under 2.0.20) where DEBUG logging of io.undertow.request.security can leak user credentials from log files. Reported in multiple sources (including OSV entries and CNVD) as a log-file disclosure vulnerability with network-based access and high confidentiality/inte...

CVE-2022-1319

CVE-2022-1319 affects Undertow (via JBoss EAP 7) where an AJP 400 response can trigger two response packets that carry the reuse flag, and the connection reuse logic reads the second SEND_HEADERS instead of CPONG after a CPING. This can lead to a vulnerability in scenarios where connections are r...

CVE-2022-2237

CVE-2022-2237 describes an Open Redirect in the Keycloak Node.js Adapter, exploitable via the checkSso flow (and checkSSO with prompt=none). Multiple connected sources corroborate the Open Redirect issue (GHSA advisory, OSV entries, CVE records, RHSA/RH listings). The PT-Security entry notes affe...

CVE-2020-25644

CVE-2020-25644 is a memory‑leak vulnerability in WildFly OpenSSL (WildFly OpenSSL natives) prior to 1.1.3.Final. The flaw causes a memory leak per HTTP session creation, which can lead to Out-Of-Memory and a denial of service, predominantly affecting availability. Affected component/file: WildFly...

CVE-2022-4492

CVE-2022-4492 is linked to Undertow: the undertow client does not verify the server identity presented by the server certificate in HTTPS connections, a TLS-level check that should be performed by default. This can enable weaknesses in TLS client verification and potential MITM scenarios. Connect...

CVE-2019-14888

CVE-2019-14888 affects the Undertow HTTP server prior to version 2.0.28.SP1 when listening on HTTPS. An attacker can target the HTTPS port to cause a Denial of Service, rendering the SSL service unavailable. The description in the provided documents does not specify exploitable details beyond thi...

CVE-2019-14843

CVE-2019-14843 affects Red Hat JBoss Enterprise Application Platform (EAP) 7.x running WildFly-based Security Manager under JDK 8/11, enabling authorization bypass that could expose unauthorized information. Connected advisories confirm this vulnerability (e.g., RHSA-2024:5856) and list a securit...

CVE-2020-1757

The connected Red Hat advisory RHSA-2024:5856 confirms CVE-2020-1757 in Undertow: servletPath normalization could truncate a path after a semicolon, enabling dangerous application mapping and a security bypass. Affected products/versions include Undertow-based components within Red Hat JBoss EAP ...

CVE-2023-6563

CVE-2023-6563 is an offline-session DoS vulnerability in Keycloak/Red Hat SSO. Exploitation arises when an attacker triggers the admin UI by opening the consents tab after creating multiple user sessions, causing massive offline session load and resource exhaustion. The issue is acknowledged in R...

CVE-2020-1714

Keycloak before 11.0.0 contains usages of ObjectInputStream without type checks, allowing deserialization of arbitrary Java objects in a privileged context and potentially enabling remote code execution (CVE-2020-1714). References associate this CVE with Red Hat advisories noting Keycloak as the ...

CVE-2020-27826

The CVE-2020-27826 entry concerns Keycloak prior to 12.0.0, where a flaw in the Account REST API allows updating a user’s metadata attributes, specifically the NameID, enabling an attacker to impersonate the admin user for a given application. The affected component is Keycloak’s account metadata...