ZeroDay Findings
Sign inSign up

Findings

CVE-2026-4366

A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests.

Published Mar 18, 2026 · updated Jun 17, 2026 · redhat build of keycloak

A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or restricted resources. As a result, sensitive internal services such as cloud metadata endpoints could be accessed. This issue may lead to information disclosure and enable attackers to map internal network infrastructure.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 18, 2026 · NIST NVD

    Detected

    A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or restricted resources. As a result, sensitive internal services such as cloud metadata endpoints could be accessed. This iss

  2. Jun 17, 2026 · NIST NVD

    Updated

    A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or restricted resources. As a result, sensitive internal services such as cloud metadata endpoints could be accessed. This iss

Affected

  • cpe redhat/build of keycloakversion unspecified
  • cpe redhat/jboss enterprise application platform8.0.0
  • cpe redhat/jboss enterprise application platform expansion packversion unspecified
  • cpe redhat/single sign-on7.0

Sources

  • CVE.orgVulnerability recordCVE-2026-4366

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-4366

    A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or res

    nvd.nist.gov

References