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Vulnerability record · CVE-2023-6291 · published 26 January 2024

CVE-2023-6291: Redhat keycloak open redirect vulnerability

Redhat · Keycloak

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.

7.1 CVSS 3.1 High EPSS 0.95% · top 40.3% CWE-601 · Open redirect
7.1CVSS 3.1 base score
0.95%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
28References
22 Sep 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2023:7854 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7855 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7856 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7857 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7858 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7860 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7861 Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:0798
https://access.redhat.com/errata/RHSA-2024:0799
https://access.redhat.com/errata/RHSA-2024:0800
https://access.redhat.com/errata/RHSA-2024:0801
https://access.redhat.com/errata/RHSA-2024:0804
https://access.redhat.com/security/cve/CVE-2023-6291 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2251407 Issue TrackingVendor Advisory
https://access.redhat.com/errata/RHSA-2023:7854 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7855 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7856 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7857 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7858 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7860 Vendor Advisory
https://access.redhat.com/errata/RHSA-2023:7861 Vendor Advisory
https://access.redhat.com/errata/RHSA-2024:0798
https://access.redhat.com/errata/RHSA-2024:0799
https://access.redhat.com/errata/RHSA-2024:0800
https://access.redhat.com/errata/RHSA-2024:0801
https://access.redhat.com/errata/RHSA-2024:0804
https://access.redhat.com/security/cve/CVE-2023-6291 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2251407 Issue TrackingVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-6291), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.