Is there a public exploit for CVE-2023-6291?

No public exploit for CVE-2023-6291 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2023-6291?

CVE-2023-6291 scores CVSS 7.1 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.95%.

What does CVE-2023-6291 affect?

CVE-2023-6291 affects Red Hat Red Hat Single Sign-On 7.6 for RHEL 8, Red Hat Single Sign-On 7.6 for RHEL 9, Red Hat Single Sign-On 7.6 for RHEL 7, Red Hat build of Keycloak 22, RHEL-8 based Middleware Containers.

7.1 High

A flaw was found in the redirecturi validation logic in Keycloak.

CVE-2023-6291

A flaw was found in the redirecturi 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.

Assessment

CVSS: 7.1 (v3.1)
Severity: High
EPSS: 0.95% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 26 January 2024
Last updated: 4 November 2026
Affected: Red Hat · RHEL-8 based Middleware Containers · Red Hat Single Sign-On 7.6 for RHEL 7 · Red Hat Single Sign-On 7.6 for RHEL 8 · Red Hat Single Sign-On 7.6 for RHEL 9
Assigner: redhat

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

At the source

EUVD (ENISA)

References

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