CVE intelligence and bounded remediation

CVE-2023-6291 — A flaw was found in the redirect_uri validation logic in Keycloak

High CVSS 7.1

A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.

Severity
High
CVSS
7.1 (3.1)
Published
2024-01-26
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-601

Affected products

  • redhat / keycloak
  • redhat / single_sign-on
  • redhat / openshift_container_platform / 4.11
  • redhat / openshift_container_platform / 4.12
  • redhat / openshift_container_platform_for_ibm_z / 4.9
  • redhat / openshift_container_platform_for_ibm_z / 4.10

Showing 6 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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