CVE-2023-6927: URL Redirection to Untrusted Site ('Open Redirect')

December 18, 2023 (updated February 14, 2024)

A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode “form_post.jwt” which could be used to bypass the security patch implemented to address CVE-2023-6134.

References

access.redhat.com/security/cve/CVE-2023-6927
bugzilla.redhat.com/show_bug.cgi?id=2255027
github.com/advisories/GHSA-3p75-q5cc-qmj7
nvd.nist.gov/vuln/detail/CVE-2023-6927

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