Multiple vulnerabilities in Red Hat build of Keycloak 26.0



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-11734
CVE-2024-11736
CWE-ID CWE-693
CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Red Hat build of Keycloak
Server applications / Other server solutions

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Protection Mechanism Failure

EUVDB-ID: #VU102569

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-11734

CWE-ID: CWE-693 - Protection Mechanism Failure

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient implementation of security measures. A remote user with the rights to change realm settings can send a specially crafted HTTP request with newline characters in headers and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat build of Keycloak: before 26.0.8

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2025:0300


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Information disclosure

EUVDB-ID: #VU102570

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-11736

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to the application discloses values of environment variables via user-configurable URLs. A remote user can configure backchannel logout URLs or admin URLs with placeholders like ${env.VARNAME} or ${PROPNAME} and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat build of Keycloak: before 26.0.8

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2025:0300


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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