VendorsRed Hatsingle_sign-on7.0
Vulnerabilities

Red Hat Redhat Single Sign-on 7.0

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

61CVEs
CVE-2022-4039
Rhsso-container-image: unsecured management interface exposed to adjecent network
Published 2023-09-22 · Modified
9.8EPSS 0.008
CVE-2025-12543
Undertow-core: undertow http server fails to reject malformed host headers leading to potential cache poisoning and ssrf
Published 2026-01-07 · Modified
9.6EPSS 0.014
CVE-2019-14887
A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption. This could lead to a leak of the data being passed over the network. Wildfly version 7.2.0.GA, 7.2.3.GA and 7.2.5.CR2 are believed to be vulnerable.
Published 2020-03-16 · Modified
9.1EPSS 0.011
CVE-2026-28367
Undertow: undertow: request smuggling via `\r\r\r` as a header block terminator
Published 2026-03-27 · Modified
9.1EPSS 0.009
CVE-2026-28368
Undertow: undertow: request smuggling via inconsistent header parsing
Published 2026-03-27 · Modified
9.1EPSS 0.009
CVE-2026-28369
Undertow: undertow: request smuggling via malformed http request headers
Published 2026-03-27 · Modified
9.1EPSS 0.009
CVE-2019-3873
It was found that Picketlink as shipped with Jboss Enterprise Application Platform 7.2 would accept an xinclude parameter in SAMLresponse XML. An attacker could use this flaw to send a URL to achieve cross-site scripting or possibly conduct further attacks.
Published 2019-06-12 · Modified
9.0EPSS 0.009
CVE-2020-1714
A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.
Published 2020-05-13 · Modified
8.8EPSS 0.026
CVE-2020-1757
A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon which may lead to an application mapping resulting in the security bypass.
Published 2020-04-21 · Modified
8.1EPSS 0.016
CVE-2019-10201
It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the <Signature> sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.
Published 2019-08-14 · Modified
8.1EPSS 0.007
CVE-2026-3009
Org.keycloak/keycloak-services: improper enforcement of disabled identity provider in identitybrokerservice (authentication bypass)
Published 2026-03-05 · Modified
8.1EPSS 0.005
CVE-2026-15573
Keycloak-services: keycloak-services: authorization bypass via unnormalized uri matching in pathmatcher
Published 2026-08-05 · Modified
8.1EPSS 0.005
CVE-2026-16102
Keycloak-services: keycloak-services: default dcr policy allows role forgery via user property mappers
Published 2026-08-05 · Modified
8.1EPSS 0.005
CVE-2023-44487
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Published 2023-10-10 · Analyzed
7.5KEV1 PoCEPSS 1.000
CVE-2021-4104
Deserialization of untrusted data in JMSAppender in Apache Log4j 1.2
Published 2021-12-14 · Modified
7.5EPSS 0.806
CVE-2019-10184
undertow before version 2.0.23.Final is vulnerable to an information leak issue. Web apps may have their directory structures predicted through requests without trailing slashes via the api.
Published 2019-07-25 · Modified
7.5EPSS 0.035
CVE-2024-7885
Undertow: improper state management in proxy protocol parsing causes information leakage
Published 2024-08-21 · Modified
7.5EPSS 0.026
CVE-2020-25644
A memory leak flaw was found in WildFly OpenSSL in versions prior to 1.1.3.Final, where it removes an HTTP session. It may allow the attacker to cause OOM leading to a denial of service. The highest threat from this vulnerability is to system availability.
Published 2020-10-06 · Modified
7.5EPSS 0.024
CVE-2025-9784
Undertow: undertow madeyoureset http/2 ddos vulnerability
Published 2025-09-02 · Modified
7.5EPSS 0.023
CVE-2019-14888
A vulnerability was found in the Undertow HTTP server in versions before 2.0.28.SP1 when listening on HTTPS. An attacker can target the HTTPS port to carry out a Denial Of Service (DOS) to make the service unavailable on SSL.
Published 2020-01-23 · Modified
7.5EPSS 0.021
CVE-2020-10758
A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value that exceeds the actual byte count of the request body.
Published 2020-09-16 · Modified
7.5EPSS 0.019
CVE-2022-1319
A flaw was found in Undertow. For an AJP 400 response, EAP 7 is improperly sending two response packets, and those packets have the reuse flag set even though JBoss EAP closes the connection. A failure occurs when the connection is reused after a 400 by CPING since it reads in the second SEND_HEADERS response packet instead of a CPONG.
Published 2022-08-31 · Modified
7.5EPSS 0.016
CVE-2022-0084
A flaw was found in XNIO, specifically in the notifyReadClosed method. The issue revealed this method was logging a message to another expected end. This flaw allows an attacker to send flawed requests to a server, possibly causing log contention-related performance concerns or an unwanted disk fill-up.
Published 2022-08-26 · Modified
7.5EPSS 0.015
CVE-2022-0853
A flaw was found in JBoss-client. The vulnerability occurs due to a memory leak on the JBoss client-side, when using UserTransaction repeatedly and leads to information leakage vulnerability.
Published 2022-03-11 · Modified
7.5EPSS 0.015
CVE-2022-1259
A flaw was found in Undertow. A potential security issue in flow control handling by the browser over HTTP/2 may cause overhead or a denial of service in the server. This flaw exists because of an incomplete fix for CVE-2021-3629.
Published 2022-08-31 · Modified
7.5EPSS 0.013
CVE-2021-3632
A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.
Published 2022-08-26 · Modified
7.5EPSS 0.011
CVE-2021-3637
A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.
Published 2021-07-09 · Modified
7.5EPSS 0.011
CVE-2023-5379
Undertow: ajp request closes connection exceeding maxrequestsize
Published 2023-12-12 · Modified
7.5EPSS 0.010
CVE-2022-1278
A flaw was found in WildFly, where an attacker can see deployment names, endpoints, and any other data the trace payload may contain.
Published 2022-09-13 · Modified
7.5EPSS 0.009
CVE-2023-6841
Keycloak: amount of attributes per object is not limited and it may lead to dos
Published 2024-09-10 · Modified
7.5EPSS 0.007
CVE-2022-4492
The undertow client is not checking the server identity presented by the server certificate in https connections. This is a compulsory step (at least it should be performed by default) in https and in http/2. I would add it to any TLS client protocol.
Published 2023-02-23 · Modified
7.5EPSS 0.006
CVE-2022-2668
An issue was discovered in Keycloak that allows arbitrary Javascript to be uploaded for the SAML protocol mapper even if the UPLOAD_SCRIPTS feature is disabled
Published 2022-08-05 · Modified
7.2EPSS 0.010
CVE-2026-3121
Keycloak: org.keycloak/keycloak-services: keycloak: privilege escalation via manage-clients permission
Published 2026-03-26 · Modified
7.2EPSS 0.005
CVE-2021-3461
A flaw was found in keycloak where keycloak may fail to logout user session if the logout request comes from external SAML identity provider and Principal Type is set to Attribute [Name].
Published 2022-04-01 · Modified
7.1EPSS 0.003
CVE-2020-25689
A memory leak flaw was found in WildFly in all versions up to 21.0.0.Final, where host-controller tries to reconnect in a loop, generating new connections which are not properly closed while not able to connect to domain-controller. This flaw allows an attacker to cause an Out of memory (OOM) issue, leading to a denial of service. The highest threat from this vulnerability is to system availability.
Published 2020-10-30 · Modified
6.8EPSS 0.015
CVE-2021-3827
A flaw was found in keycloak, where the default ECP binding flow allows other authentication flows to be bypassed. By exploiting this behavior, an attacker can bypass the MFA authentication by sending a SOAP request with an AuthnRequest and Authorization header with the user's credentials. The highest threat from this vulnerability is to confidentiality and integrity.
Published 2022-08-23 · Modified
6.8EPSS 0.011
CVE-2021-20262
A flaw was found in Keycloak 12.0.0 where re-authentication does not occur while updating the password. This flaw allows an attacker to take over an account if they can obtain temporary, physical access to a user’s browser. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Published 2021-03-09 · Modified
6.8EPSS 0.003
CVE-2020-27838
A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality.
Published 2021-03-08 · Modified
6.5EPSS 0.179
CVE-2020-14299
A flaw was found in JBoss EAP, where the authentication configuration is set-up using a legacy SecurityRealm, to delegate to a legacy PicketBox SecurityDomain, and then reloaded to admin-only mode. This flaw allows an attacker to perform a complete authentication bypass by using an arbitrary user and password. The highest threat to vulnerability is to system availability.
Published 2020-10-16 · Modified
6.5EPSS 0.014
CVE-2020-14307
A vulnerability was found in Wildfly's Enterprise Java Beans (EJB) versions shipped with Red Hat JBoss EAP 7, where SessionOpenInvocations are never removed from the remote InvocationTracker after a response is received in the EJB Client, as well as the server. This flaw allows an attacker to craft a denial of service attack to make the service unavailable.
Published 2020-07-24 · Modified
6.5EPSS 0.012
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