CVE-2026-68563 in Red Hat
Summary
by MITRE • 07/31/2026
A flaw was found in ansible-collection-redhat-leapp. When a remediation task is executed with elevated privileges and the `leapp_old_postgresql_data` option is selected, a PostgreSQL data backup archive is created with insecure permissions. This allows a local non-root user on the managed node to read sensitive archived PostgreSQL data, leading to information disclosure.
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Analysis
by VulDB Data Team • 07/31/2026
This vulnerability exists within the ansible-collection-redhat-leapp collection where specific remediation tasks executed with elevated privileges can create PostgreSQL data backup archives with insecure file permissions. The flaw specifically manifests when the leapp_old_postgresql_data option is selected during system migration processes, creating a persistent security risk on managed nodes. The vulnerability represents a privilege escalation and information disclosure weakness that undermines the security posture of systems undergoing Red Hat Enterprise Linux upgrades through the leapp framework.
The technical root cause stems from improper permission handling during backup archive creation when elevated privileges are used. When remediation tasks execute with root-level access but fail to properly set restrictive file permissions on created PostgreSQL data archives, they inadvertently expose sensitive database content to local non-root users. This occurs because the backup process does not explicitly enforce secure file permissions, allowing standard user accounts to access archived PostgreSQL data that should remain protected. The vulnerability aligns with CWE-732: Incorrect Permission Assignment for Critical Resource, which specifically addresses inadequate permission settings on security-critical resources.
The operational impact of this vulnerability is significant as it creates an information disclosure channel that can expose sensitive database content including user credentials, application data, and system configuration details. Local non-root users who might not otherwise have access to PostgreSQL data can exploit this flaw to read archived database contents, potentially leading to further compromise through credential exposure or data manipulation. Attackers could leverage this vulnerability during routine maintenance operations or system upgrades when elevated privileges are temporarily active, making it particularly dangerous in environments where multiple users share the same managed nodes.
Mitigation strategies should focus on enforcing proper file permission controls during backup archive creation processes. System administrators must ensure that PostgreSQL data archives created during leapp remediation tasks are protected with restrictive permissions such as 600 or 640, preventing unauthorized access by non-root users. The recommended approach involves implementing explicit permission setting in the backup creation scripts or using security frameworks that automatically enforce secure file permissions. Additionally, organizations should conduct regular audits of backup archive permissions and implement monitoring for unauthorized access attempts to sensitive data files.
The vulnerability demonstrates characteristics consistent with ATT&CK technique T1005: Data from Local System, where adversaries seek to extract sensitive information from compromised systems. It also relates to ATT&CK technique T1078: Valid Accounts, as the attack vector relies on legitimate local user accounts rather than privilege escalation techniques. Organizations should consider implementing principle of least privilege controls and regular permission audits to prevent similar issues in other automation frameworks and backup processes. The flaw emphasizes the critical importance of secure file handling practices during system maintenance operations and highlights the need for comprehensive security testing of automation tools used in enterprise environments.