CVE-2026-14476
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.
Executive briefing
The source record describes: 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. The practical risk depends on whether an affected product/version is present, reachable and configured in an exploitable way. Review the affected-product evidence and linked vendor advisories before assigning exposure status.
Evidence confidence: Limited Evidence-derived, not an exploitability verdict
Severity & attack characteristics
CVSS vector:CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Technical explanation & impact
The technical mechanism is not expanded beyond the source description unless a referenced advisory supplies additional evidence. Read the linked vendor/CERT advisories for root-cause detail.
Potential impact must be interpreted from the published CVSS impact metrics and the affected component. A CVSS impact score is not proof that a particular asset is exploitable.
Weakness classification
CWE-23Affected products and versions
NVD has not supplied machine-readable vulnerable CPE product/version entries for this CVE. This is an information gap, not proof that no products are affected. Check the vendor advisory references below.
Remediation & validation
- Identify exposure by comparing the affected product and version ranges with your asset inventory, SBOM and externally exposed services.
- Review the linked vendor security advisory or patch notes. Upgrade to a vendor-confirmed fixed release; do not infer a fixed version from the CVE description.
- Until patched, consider restricting network access or disabling the affected feature where operationally safe. These are temporary controls, not a substitute for a vendor fix.
- Validate the remediation with a version check and vulnerability rescan, then retain change evidence.
No fixed version is displayed unless it is explicitly established by a vendor advisory. Follow the vendor's release notes for exact product and branch applicability.
Vendor advisories, patches & exploit references
- https://access.redhat.com/errata/RHSA-2026:41937 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:42122 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:46482 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:46990 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:49839 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:49840 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:49841 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:49842 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:49843 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:49844 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:50109 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:54187 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:54553 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:54581 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:54599 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:54769 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:56786 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:56853 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:56911 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:57483 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:59831 VENDOR secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:60019 VENDOR secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-14476 VENDOR secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2496581 VENDOR secalert@redhat.com
Information gaps & confidence notes
These gaps indicate missing source data. CVE Watch does not fill them with guessed product, exploit or patch details.
- NVD does not currently provide machine-readable vulnerable CPE product/version entries for this record.
Last enrichment: 2026-11-07T03:50:27+00:00 · Source last modified: 2026-11-05T17:18:07.623