Red Hat Security Advisory: sssd security update
Description
The System Security Services Daemon (SSSD) service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch (NSS) and the Pluggable Authentication Modules (PAM) interfaces toward the system, and a pluggable back-end system to connect to multiple different account sources. Security Fix(es): * sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation (CVE-2026-14474) * sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass (CVE-2026-14476) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The System Security Services Daemon (SSSD) in Red Hat Enterprise Linux versions 9 and 10 contained two important security flaws. CVE-2026-14474 is a privilege escalation vulnerability caused by the sudo LDAP provider searching the entire directory tree for sudoRole objects by default, potentially granting unauthorized elevated privileges. CVE-2026-14476 is a Kerberos authentication bypass vulnerability caused by a path traversal in the GPO cache due to an unsanitized gPCFileSysPath. These vulnerabilities affect multiple architectures and variants of Red Hat Enterprise Linux 9 and 10, including AppStream, BaseOS, and CRB. Red Hat has issued official security advisories and released patched packages to remediate these issues.
Potential Impact
Successful exploitation of CVE-2026-14474 could allow an attacker to escalate privileges by leveraging the sudo LDAP provider's default behavior of searching the entire directory tree for sudoRole objects. CVE-2026-14476 could allow an attacker to bypass Kerberos authentication by exploiting a path traversal vulnerability in the GPO cache. Both vulnerabilities compromise authentication and authorization mechanisms, potentially allowing unauthorized access or elevated privileges on affected systems.
Mitigation Recommendations
Red Hat has released official security updates that address these vulnerabilities. Users should apply the provided patches for Red Hat Enterprise Linux 9 and 10 as described in the Red Hat advisories RHSA-2026:41937 and RHSA-2026:42122. Detailed instructions for applying these updates are available at https://access.redhat.com/articles/11258. Since patches are available, applying these updates is the recommended and effective mitigation.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:41937
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-14476"]
- State
- PUBLISHED
Threat ID: 6a5e7a022a4a8d59899d8876
Added to database: 07/20/2026, 19:41:54 UTC
Last enriched: 08/12/2026, 18:41:16 UTC
Last updated: 10/19/2026, 18:48:18 UTC
Views: 152
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