Riskcovery

CVE-2026-3872

Keycloak: keycloak: information disclosure due to redirect_uri validation bypass

State
Published
Severity
7.3 High
Published
Apr 2, 2026
Updated
Jul 15, 2026
Reserved
Mar 10, 2026

Read the record on cve.org

Description

A flaw was found in Keycloak. This issue allows an attacker, who controls another path on the same web server, to bypass the allowed path in redirect Uniform Resource Identifiers (URIs) that use a wildcard. A successful attack may lead to the theft of an access token, resulting in information disclosure.

Scores

CVSSScoreVectorSource
3.17.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Nredhat
3.17.3 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Nredhat-SADP

Weaknesses

  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected Products

ProductVersions
Red Hat build of Keycloak 26.2Red Hat
  • 26.2.15-1 and laterNot affected
Red Hat build of Keycloak 26.2Red Hat
  • 26.2-18 and laterNot affected
Red Hat build of Keycloak 26.2Red Hat
  • 26.2-18 and laterNot affected
Red Hat build of Keycloak 26.2.15Red Hat
    Red Hat build of Keycloak 26.4Red Hat
    • 26.4.11-1 and laterNot affected
    Red Hat build of Keycloak 26.4Red Hat
    • 26.4-14 and laterNot affected
    Red Hat build of Keycloak 26.4Red Hat
    • 26.4-14 and laterNot affected
    Red Hat build of Keycloak 26.4.11Red Hat

      References

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