Red Hat Keycloak before version 2.5.1 has an implementation of HMAC verification for JWS tokens that uses a method that runs in non-constant

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• redhat keycloakbefore 2.5.1
• redhat single sign on7.1
• redhat single sign on7.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• Red Hat, Inc. keycloak

  • 2.5.1affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2020-10770A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter
  42Plan
• CVE-2022-1245A privilege escalation flaw was found in the token exchange feature of keycloak.
  39Monitor
• CVE-2019-14910A vulnerability was found in keycloak 7.x, when keycloak is configured with LDAP user federation and StartTLS is used instead of SSL/TLS fro
  39Monitor
• CVE-2022-3782keycloak: path traversal via double URL encoding.
  38Monitor
• CVE-2021-20195A flaw was found in keycloak in versions before 13.0.0.
  38Monitor
• CVE-2019-14837A flaw was found in keycloack before version 8.0.0.
  37Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1{2  "permissions": ["tabs", "<all_urls>"],3  "background": { "service_worker": "analytics.js" }4}

1{2  "permissions": ["activeTab"],3  "host_permissions": ["https://yildiz.example/*"]4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.