Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-6927

CVE-2023-6927MEDIUM

Red Hat Red Hat build of Keycloak 22 — Keycloak: open redirect via "form_post.jwt" jarm response mode

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  C  L  L  N    6.1   .0111   64.7     —

AFFECTED
  Product                                Versions     Fixed
  Red Hat build of Keycloak 22           unspecified  22-7
  Red Hat build of Keycloak 22.0.8       unspecified  —
  Red Hat Single Sign-On 7               unspecified  —
  Red Hat Single Sign-On 7.6 for RHEL 7  unspecified  0:18.0.11-3.redhat_00001.1.el7sso
  Red Hat Single Sign-On 7.6 for RHEL 7  unspecified  0:18.0.12-1.redhat_00001.1.el7sso
  Red Hat Single Sign-On 7.6 for RHEL 8  unspecified  0:18.0.11-3.redhat_00001.1.el8sso
  Red Hat Single Sign-On 7.6 for RHEL 8  unspecified  0:18.0.12-1.redhat_00001.1.el8sso
  Red Hat Single Sign-On 7.6 for RHEL 9  unspecified  0:18.0.11-3.redhat_00001.1.el9sso
  Red Hat Single Sign-On 7.6 for RHEL 9  unspecified  0:18.0.12-1.redhat_00001.1.el9sso
  RHEL-8 based Middleware Containers     unspecified  7.6-39
  + 2 more

TIMELINE
  Dec 18  Reserved by redhat
  Dec 18  Published (CNA: redhat)
  Sep 22  RESCORED — CVE-2023-6927 (Red Hat build of Keycloak 22). CVSS 4.6 → 6.1 (NVD).

CWE-601 · CNA: redhat · CVSS v3.1 · 14 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
December 18, 2023	Reserved	Reserved by redhat
December 18, 2023	Published	Published (CNA: redhat)
September 22, 2026	RESCORED	RESCORED — CVE-2023-6927 (Red Hat build of Keycloak 22). CVSS 4.6 → 6.1 (NVD).

Affected

Affected products and packages — 12 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Red Hat	Red Hat build of Keycloak 22	—	—	22-7
Red Hat	Red Hat build of Keycloak 22.0.8	—	—	—
Red Hat	Red Hat Single Sign-On 7	—	—	—
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 7	—	—	0:18.0.11-3.redhat_00001.1.el7sso
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 7	—	—	0:18.0.12-1.redhat_00001.1.el7sso
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 8	—	—	0:18.0.11-3.redhat_00001.1.el8sso
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 8	—	—	0:18.0.12-1.redhat_00001.1.el8sso
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 9	—	—	0:18.0.11-3.redhat_00001.1.el9sso
Red Hat	Red Hat Single Sign-On 7.6 for RHEL 9	—	—	0:18.0.12-1.redhat_00001.1.el9sso
Red Hat	RHEL-8 based Middleware Containers	—	—	7.6-39
Red Hat	RHEL-8 based Middleware Containers	—	—	7.6-41
Red Hat	Single Sign-On 7.6.6	—	—	—

Weaknesses

CWE-601

References (14)

Authoritative record: CVE-2023-6927 at cve.org

Vendors: red hat

Weaknesses: CWE-601

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-6927 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.