Critical Security Vulnerability in SSSD Packages: Red Hat Advisory RHSA-2026:50109
Summary
RHSA-2026:50109: Red Hat Security Advisory: sssd security update. Affects libipa_hbac versions < 0:1.16.5-10.el7_9.18. Fixed in 0:1.16.5-10.el7_9.18. How to fix ↓
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Background
The System Security Services Daemon (SSSD) is a system service that provides access to different identity and authentication providers. It is widely used in enterprise environments to manage user identities and authentication processes. The affected packages include various libraries and tools that support SSSD functionality, such as libipa_hbac, libsss_autofs, and others. These packages are essential for ensuring secure and efficient user management in systems running Red Hat Enterprise Linux 7.
Vulnerability Detail
The vulnerability identified in this advisory is associated with multiple SSSD packages, which may expose systems to unauthorized access or privilege escalation. The vulnerabilities stem from improper handling of certain authentication requests, leading to potential exploitation by attackers. If successfully exploited, this could allow unauthorized users to gain elevated privileges, compromising the integrity and confidentiality of the system. The CVSS score for this vulnerability is 8.8, indicating a high severity level.
How To Fix
Minimum fixed version
0:1.16.5-10.el7_9.18
This is the first release that contains the fix.
sudo dnf update libipa_hbacTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, consider restricting access to the affected services or implementing additional authentication measures until the packages can be updated. This may involve configuring firewall rules or using access control lists to limit exposure.
Conclusion
In summary, the Red Hat Security Advisory RHSA-2026:50109 highlights critical vulnerabilities in various SSSD packages that could lead to unauthorized access and privilege escalation. It is crucial to update the affected packages to the patched version to mitigate these risks.
See every vulnerability recorded for libipa_hbac →
FAQ
The CVSS score of this vulnerability is 8.8, indicating a high severity level.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
If exploited, this vulnerability could allow unauthorized users to gain elevated privileges, compromising system integrity and confidentiality.
If immediate updates are not possible, consider implementing temporary workarounds such as restricting access to affected services.
More information can be found in the Red Hat Security Advisory RHSA-2026:50109 and on the Red Hat security website.
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