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122 vulnerabilities found for Red Hat Single Sign-On 7 by Red Hat
CVE-2026-2733 (GCVE-0-2026-2733)
Vulnerability from nvd – Published: 2026-02-19 07:48 – Updated: 2026-02-23 07:47
VLAI?
Title
Org.keycloak/keycloak-services: keycloak: missing check on disabled client for docker registry protocol
Summary
A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry client has been administratively disabled. This means that turning the client “Enabled” setting to OFF does not fully prevent access. As a result, previously valid credentials can still be used to obtain authentication tokens. This weakens administrative controls and could allow unintended access to container registry resources.
Severity ?
CWE
- CWE-285 - Improper Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Joy Gilbert and Reynaldo Immanuel for reporting this issue.
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CVE-2024-4027 (GCVE-0-2024-4027)
Vulnerability from nvd – Published: 2026-01-30 14:25 – Updated: 2026-01-30 14:41
VLAI?
Title
Undertow: outofmemoryerror in httpservletrequestimpl.getparameternames() can cause remote dos attacks
Summary
A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames() can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service (DoS) attack.
Severity ?
7.5 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2026-1190 (GCVE-0-2026-1190)
Vulnerability from nvd – Published: 2026-01-26 19:36 – Updated: 2026-01-26 20:57
VLAI?
Title
Org.keycloak/keycloak-services: keycloak saml brokering: response delay due to unchecked notonorafter in subjectconfirmationdata
Summary
A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language (SAML) setup, it fails to validate the `NotOnOrAfter` timestamp within the `SubjectConfirmationData`. This allows an attacker to delay the expiration of SAML responses, potentially extending the time a response is considered valid and leading to unexpected session durations or resource consumption.
Severity ?
CWE
- CWE-112 - Missing XML Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
|||||||||||||||||
|
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Credits
Red Hat would like to thank Franz Bettag (Bettag Systems) for reporting this issue.
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CVE-2026-0603 (GCVE-0-2026-0603)
Vulnerability from nvd – Published: 2026-01-23 06:31 – Updated: 2026-02-10 17:46
VLAI?
Title
Org.hibernate/hibernate-core: hibernate: information disclosure and data deletion via second-order sql injection
Summary
A flaw was found in Hibernate. A remote attacker with low privileges could exploit a second-order SQL injection vulnerability by providing specially crafted, unsanitized non-alphanumeric characters in the ID column when the InlineIdsOrClauseBuilder is used. This could lead to sensitive information disclosure, such as reading system files, and allow for data manipulation or deletion within the application's database, resulting in an application level denial of service.
Severity ?
8.3 (High)
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
5.2.8 , ≤ 5.6.15
(semver)
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Christiaan Swiers (YouGina) and Tommy Williams (HeroDevs) for reporting this issue.
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CVE-2026-1035 (GCVE-0-2026-1035)
Vulnerability from nvd – Published: 2026-01-21 05:52 – Updated: 2026-01-21 14:40
VLAI?
Title
Org.keycloak.protocol.oidc: keycloak refresh token reuse bypass via toctou race condition
Summary
A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak’s refresh token rotation hardening can be undermined.
Severity ?
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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cpe:/a:redhat:build_keycloak: |
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Credits
Red Hat would like to thank Mohamed Amine ait Ouchebou (mrecho) (Indiesecurity) for reporting this issue.
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CVE-2026-1180 (GCVE-0-2026-1180)
Vulnerability from nvd – Published: 2026-01-20 12:33 – Updated: 2026-01-21 05:52
VLAI?
Title
Org.keycloak.protocol.oidc: blind server-side request forgery (ssrf) in keycloak oidc dynamic client registration via jwks_uri
Summary
A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using private_key_jwt. The issue allows a client to specify an arbitrary jwks_uri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the Keycloak server into making HTTP requests to internal or restricted network resources. As a result, attackers can probe internal services and cloud metadata endpoints, creating an information disclosure and reconnaissance risk.
Severity ?
5.8 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
|||||||||||||||||||||||||||
|
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Credits
Red Hat would like to thank Lucas Montes (Nirox) for reporting this issue.
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CVE-2025-12543 (GCVE-0-2025-12543)
Vulnerability from nvd – Published: 2026-01-07 16:04 – Updated: 2026-02-09 14:32
VLAI?
Title
Undertow-core: undertow http server fails to reject malformed host headers leading to potential cache poisoning and ssrf
Summary
A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.
Severity ?
9.6 (Critical)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
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Impacted products
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| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 |
cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el8 |
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Credits
Red Hat would like to thank Ahmet Artuç for reporting this issue.
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CVE-2024-3884 (GCVE-0-2024-3884)
Vulnerability from nvd – Published: 2025-12-03 18:40 – Updated: 2026-01-26 22:47
VLAI?
Title
Undertow: outofmemory when parsing form data encoding with application/x-www-form-urlencoded
Summary
A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue. This flaw allows unauthorized users to cause a remote denial of service (DoS) attack.
Severity ?
7.5 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 |
cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el8 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2025-12789 (GCVE-0-2025-12789)
Vulnerability from nvd – Published: 2025-11-06 23:20 – Updated: 2025-11-07 17:59
VLAI?
Title
Rhsso: open redirect
Summary
A flaw was found in Red Hat Single Sign-On. This issue is an Open Redirect vulnerability that occurs during the logout process. The redirect_uri parameter associated with the openid-connect logout protocol does not properly validate the provided URL.
Severity ?
6.1 (Medium)
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
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cpe:/a:redhat:red_hat_single_sign_on:7 |
Credits
Red Hat would like to thank Edcarlos Junior for reporting this issue.
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CVE-2025-9784 (GCVE-0-2025-9784)
Vulnerability from nvd – Published: 2025-09-02 13:37 – Updated: 2026-01-26 20:53
VLAI?
Title
Undertow: undertow madeyoureset http/2 ddos vulnerability
Summary
A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).
Severity ?
7.5 (High)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
0 , < 2.2.38.Final
(semver)
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2025-7784 (GCVE-0-2025-7784)
Vulnerability from nvd – Published: 2025-07-18 13:48 – Updated: 2025-11-07 21:37
VLAI?
Title
Org.keycloak/keycloak-services: privilege escalation in keycloak admin console (fgapv2 enabled)
Summary
A flaw was found in the Keycloak identity and access management system when Fine-Grained Admin Permissions(FGAPv2) are enabled. An administrative user with the manage-users role can escalate their privileges to realm-admin due to improper privilege enforcement. This vulnerability allows unauthorized elevation of access rights, compromising the intended separation of administrative duties and posing a security risk to the realm.
Severity ?
6.5 (Medium)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
0 , < 26.2.6
(semver)
|
|||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Patrick Kutz for reporting this issue.
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CVE-2025-3501 (GCVE-0-2025-3501)
Vulnerability from nvd – Published: 2025-04-29 20:45 – Updated: 2025-11-20 07:27
VLAI?
Title
Org.keycloak.protocol.services: keycloak hostname verification
Summary
A flaw was found in Keycloak. By setting a verification policy to 'ALL', the trust store certificate verification is skipped, which is unintended.
Severity ?
8.2 (High)
CWE
- CWE-297 - Improper Validation of Certificate with Host Mismatch
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
25.0.0 , < 25.*
(semver)
Affected: 26.0.0 , < 26.0.11 (semver) Unknown: 26.1.0 , < 26.1.* (semver) Affected: 26.2.0 , < 26.2.2 (semver) |
|||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2025-2559 (GCVE-0-2025-2559)
Vulnerability from nvd – Published: 2025-03-25 08:20 – Updated: 2026-01-29 19:26
VLAI?
Title
Org.keycloak/keycloak-services: jwt token cache exhaustion leading to denial of service (dos) in keycloak
Summary
A flaw was found in Keycloak. When the configuration uses JWT tokens for authentication, the tokens are cached until expiration. If a client uses JWT tokens with an excessively long expiration time, for example, 24 or 48 hours, the cache can grow indefinitely, leading to an OutOfMemoryError. This issue could result in a denial of service condition, preventing legitimate users from accessing the system.
Severity ?
4.9 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
23.0.0 , < 26.0.11
(semver)
Affected: 26.1.0 , < 26.1.5 (semver) |
|||||||||||||||||||||||||||||
|
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CVE-2025-23368 (GCVE-0-2025-23368)
Vulnerability from nvd – Published: 2025-03-04 15:14 – Updated: 2026-02-16 15:18
VLAI?
Title
Org.wildfly.core:wildfly-elytron-integration: wildfly elytron brute force attack via cli
Summary
A flaw was found in Wildfly Elytron integration. The component does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks via CLI.
Severity ?
8.1 (High)
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
0 , ≤ *
(semver)
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Claudia Bartolini (TIM S.p.A), Marco Ventura (TIM S.p.A), and Massimiliano Brolli (TIM S.p.A) for reporting this issue.
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CVE-2024-4028 (GCVE-0-2024-4028)
Vulnerability from nvd – Published: 2025-02-18 17:54 – Updated: 2025-11-21 06:47
VLAI?
Title
Keycloak-core: stored xss in keycloak when creating a items in admin console
Summary
A vulnerability was found in Keycloak. This issue may allow a privileged attacker to use a malicious payload as the permission while creating items (Resource and Permissions) from the admin console, leading to a stored cross-site scripting (XSS) attack.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
18.0.8 , < 18.0.8
(semver)
|
||||||||||||||
|
||||||||||||||
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CVE-2026-2733 (GCVE-0-2026-2733)
Vulnerability from cvelistv5 – Published: 2026-02-19 07:48 – Updated: 2026-02-23 07:47
VLAI?
Title
Org.keycloak/keycloak-services: keycloak: missing check on disabled client for docker registry protocol
Summary
A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry client has been administratively disabled. This means that turning the client “Enabled” setting to OFF does not fully prevent access. As a result, previously valid credentials can still be used to obtain authentication tokens. This weakens administrative controls and could allow unintended access to container registry resources.
Severity ?
CWE
- CWE-285 - Improper Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Joy Gilbert and Reynaldo Immanuel for reporting this issue.
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CVE-2024-4027 (GCVE-0-2024-4027)
Vulnerability from cvelistv5 – Published: 2026-01-30 14:25 – Updated: 2026-01-30 14:41
VLAI?
Title
Undertow: outofmemoryerror in httpservletrequestimpl.getparameternames() can cause remote dos attacks
Summary
A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames() can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service (DoS) attack.
Severity ?
7.5 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | OpenShift Serverless |
cpe:/a:redhat:serverless:1 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2026-1190 (GCVE-0-2026-1190)
Vulnerability from cvelistv5 – Published: 2026-01-26 19:36 – Updated: 2026-01-26 20:57
VLAI?
Title
Org.keycloak/keycloak-services: keycloak saml brokering: response delay due to unchecked notonorafter in subjectconfirmationdata
Summary
A flaw was found in Keycloak's SAML brokering functionality. When Keycloak is configured as a client in a Security Assertion Markup Language (SAML) setup, it fails to validate the `NotOnOrAfter` timestamp within the `SubjectConfirmationData`. This allows an attacker to delay the expiration of SAML responses, potentially extending the time a response is considered valid and leading to unexpected session durations or resource consumption.
Severity ?
CWE
- CWE-112 - Missing XML Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Franz Bettag (Bettag Systems) for reporting this issue.
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CVE-2026-0603 (GCVE-0-2026-0603)
Vulnerability from cvelistv5 – Published: 2026-01-23 06:31 – Updated: 2026-02-10 17:46
VLAI?
Title
Org.hibernate/hibernate-core: hibernate: information disclosure and data deletion via second-order sql injection
Summary
A flaw was found in Hibernate. A remote attacker with low privileges could exploit a second-order SQL injection vulnerability by providing specially crafted, unsanitized non-alphanumeric characters in the ID column when the InlineIdsOrClauseBuilder is used. This could lead to sensitive information disclosure, such as reading system files, and allow for data manipulation or deletion within the application's database, resulting in an application level denial of service.
Severity ?
8.3 (High)
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
5.2.8 , ≤ 5.6.15
(semver)
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Christiaan Swiers (YouGina) and Tommy Williams (HeroDevs) for reporting this issue.
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CVE-2026-1035 (GCVE-0-2026-1035)
Vulnerability from cvelistv5 – Published: 2026-01-21 05:52 – Updated: 2026-01-21 14:40
VLAI?
Title
Org.keycloak.protocol.oidc: keycloak refresh token reuse bypass via toctou race condition
Summary
A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak’s refresh token rotation hardening can be undermined.
Severity ?
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
|||||||||||||||||
|
|||||||||||||||||||
Credits
Red Hat would like to thank Mohamed Amine ait Ouchebou (mrecho) (Indiesecurity) for reporting this issue.
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CVE-2026-1180 (GCVE-0-2026-1180)
Vulnerability from cvelistv5 – Published: 2026-01-20 12:33 – Updated: 2026-01-21 05:52
VLAI?
Title
Org.keycloak.protocol.oidc: blind server-side request forgery (ssrf) in keycloak oidc dynamic client registration via jwks_uri
Summary
A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using private_key_jwt. The issue allows a client to specify an arbitrary jwks_uri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the Keycloak server into making HTTP requests to internal or restricted network resources. As a result, attackers can probe internal services and cloud metadata endpoints, creating an information disclosure and reconnaissance risk.
Severity ?
5.8 (Medium)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
|||||||||||||||||||||||||||
|
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Credits
Red Hat would like to thank Lucas Montes (Nirox) for reporting this issue.
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CVE-2025-12543 (GCVE-0-2025-12543)
Vulnerability from cvelistv5 – Published: 2026-01-07 16:04 – Updated: 2026-02-09 14:32
VLAI?
Title
Undertow-core: undertow http server fails to reject malformed host headers leading to potential cache poisoning and ssrf
Summary
A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.
Severity ?
9.6 (Critical)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 |
cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el8 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Credits
Red Hat would like to thank Ahmet Artuç for reporting this issue.
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CVE-2024-3884 (GCVE-0-2024-3884)
Vulnerability from cvelistv5 – Published: 2025-12-03 18:40 – Updated: 2026-01-26 22:47
VLAI?
Title
Undertow: outofmemory when parsing form data encoding with application/x-www-form-urlencoded
Summary
A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue. This flaw allows unauthorized users to cause a remote denial of service (DoS) attack.
Severity ?
7.5 (High)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
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Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 |
cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el8 |
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CVE-2025-12789 (GCVE-0-2025-12789)
Vulnerability from cvelistv5 – Published: 2025-11-06 23:20 – Updated: 2025-11-07 17:59
VLAI?
Title
Rhsso: open redirect
Summary
A flaw was found in Red Hat Single Sign-On. This issue is an Open Redirect vulnerability that occurs during the logout process. The redirect_uri parameter associated with the openid-connect logout protocol does not properly validate the provided URL.
Severity ?
6.1 (Medium)
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Red Hat | Red Hat Single Sign-On 7 |
cpe:/a:redhat:red_hat_single_sign_on:7 |
Credits
Red Hat would like to thank Edcarlos Junior for reporting this issue.
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CVE-2025-9784 (GCVE-0-2025-9784)
Vulnerability from cvelistv5 – Published: 2025-09-02 13:37 – Updated: 2026-01-26 20:53
VLAI?
Title
Undertow: undertow madeyoureset http/2 ddos vulnerability
Summary
A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).
Severity ?
7.5 (High)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
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| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
0 , < 2.2.38.Final
(semver)
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2025-7784 (GCVE-0-2025-7784)
Vulnerability from cvelistv5 – Published: 2025-07-18 13:48 – Updated: 2025-11-07 21:37
VLAI?
Title
Org.keycloak/keycloak-services: privilege escalation in keycloak admin console (fgapv2 enabled)
Summary
A flaw was found in the Keycloak identity and access management system when Fine-Grained Admin Permissions(FGAPv2) are enabled. An administrative user with the manage-users role can escalate their privileges to realm-admin due to improper privilege enforcement. This vulnerability allows unauthorized elevation of access rights, compromising the intended separation of administrative duties and posing a security risk to the realm.
Severity ?
6.5 (Medium)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
0 , < 26.2.6
(semver)
|
|||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Patrick Kutz for reporting this issue.
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CVE-2025-3501 (GCVE-0-2025-3501)
Vulnerability from cvelistv5 – Published: 2025-04-29 20:45 – Updated: 2025-11-20 07:27
VLAI?
Title
Org.keycloak.protocol.services: keycloak hostname verification
Summary
A flaw was found in Keycloak. By setting a verification policy to 'ALL', the trust store certificate verification is skipped, which is unintended.
Severity ?
8.2 (High)
CWE
- CWE-297 - Improper Validation of Certificate with Host Mismatch
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
25.0.0 , < 25.*
(semver)
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|||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2025-2559 (GCVE-0-2025-2559)
Vulnerability from cvelistv5 – Published: 2025-03-25 08:20 – Updated: 2026-01-29 19:26
VLAI?
Title
Org.keycloak/keycloak-services: jwt token cache exhaustion leading to denial of service (dos) in keycloak
Summary
A flaw was found in Keycloak. When the configuration uses JWT tokens for authentication, the tokens are cached until expiration. If a client uses JWT tokens with an excessively long expiration time, for example, 24 or 48 hours, the cache can grow indefinitely, leading to an OutOfMemoryError. This issue could result in a denial of service condition, preventing legitimate users from accessing the system.
Severity ?
4.9 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
23.0.0 , < 26.0.11
(semver)
Affected: 26.1.0 , < 26.1.5 (semver) |
|||||||||||||||||||||||||||||
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CVE-2025-23368 (GCVE-0-2025-23368)
Vulnerability from cvelistv5 – Published: 2025-03-04 15:14 – Updated: 2026-02-16 15:18
VLAI?
Title
Org.wildfly.core:wildfly-elytron-integration: wildfly elytron brute force attack via cli
Summary
A flaw was found in Wildfly Elytron integration. The component does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks via CLI.
Severity ?
8.1 (High)
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
0 , ≤ *
(semver)
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credits
Red Hat would like to thank Claudia Bartolini (TIM S.p.A), Marco Ventura (TIM S.p.A), and Massimiliano Brolli (TIM S.p.A) for reporting this issue.
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CVE-2024-4028 (GCVE-0-2024-4028)
Vulnerability from cvelistv5 – Published: 2025-02-18 17:54 – Updated: 2025-11-21 06:47
VLAI?
Title
Keycloak-core: stored xss in keycloak when creating a items in admin console
Summary
A vulnerability was found in Keycloak. This issue may allow a privileged attacker to use a malicious payload as the permission while creating items (Resource and Permissions) from the admin console, leading to a stored cross-site scripting (XSS) attack.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Affected:
18.0.8 , < 18.0.8
(semver)
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{
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"url": "https://access.redhat.com/security/cve/CVE-2024-4028"
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{
"name": "RHBZ#2276418",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2276418"
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"time": "2024-04-22T00:00:00+00:00",
"value": "Reported to Red Hat."
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{
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"time": "2025-02-18T17:31:00+00:00",
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],
"title": "Keycloak-core: stored xss in keycloak when creating a items in admin console",
"workarounds": [
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"lang": "en",
"value": "Currently the is no mitigation available for this vulnerability."
}
],
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