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Vulnerability record/PUBLISHED/Published Jul 7, 2026 09:12:52 UTC

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.

Base score8.0/ 10
SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityHigh
Attack vectorNetworkAV
Attack complexityHighAC
Privileges requiredHighPR
User interactionNoneUI
ScopeChangedS
Confidentiality impactHighC
Integrity impactHighI
Availability impactHighA
CVSS vector stringCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityredhat
Last updatedOct 30, 2026 22:52:03 UTC
PublishedJul 7, 2026 09:12:52 UTC
ReservedJul 2, 2026 15:18:56 UTC

Credits

  • This issue was discovered by Ian Murphy (Red Hat).