CVE-2026-6418 Details
Description
An issue was discovered in the Shared Account Synchronization component of PaperCut MF (version 25.0.4). The application allows administrative users to configure a source path for account data synchronization. Due to a lack of proper path validation and sanitization, an authenticated user with administrative privileges can specify arbitrary file paths on the local file system. This allows for the enumeration of directory structures and the unauthorized reading of sensitive text-based configuration or system files. When the synchronization process is triggered, the application attempts to parse the contents of the specified file, subsequently exposing the data within the application's account management interface. This vulnerability could lead to the disclosure of sensitive system information or configuration details, depending on the permissions of the service account under which the application is running.
A path traversal vulnerability has been identified in the Shared Account Synchronization component of PaperCut MF version 25.0.4. This issue allows administrative users to specify arbitrary file paths on the local file system for account data synchronization. The vulnerability arises from inadequate path validation and sanitization, enabling the unauthorized reading of sensitive text-based configuration or system files. When the synchronization process is initiated, the application parses the contents of the specified file, exposing the data within the account management interface. The impact of this vulnerability varies depending on the permissions of the service account under which the application is running.
Users are advised to upgrade to PaperCut MF version 25.0.11 or later. After upgrading, review the 'security.shared-account-sync.allowed-directory-list' configuration key to ensure it is restricted to authorized directories only. For new installations of version 25.0.11 and later, this setting is configured in its most restrictive state by default.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.papercut.com/kb/Main/papercut-ng-mf-and-papercut-hive-security-bulletin-may-2026/ | PaperCut | MitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-36 | Absolute Path Traversal | PaperCut |
| CWE-552 | Files or Directories Accessible to External Parties | PaperCut |
Affected Products
| Product | Versions |
|---|---|
| papercut papercut mf | < 25.0.11 |
CPE
Remediation
| |
| papercut papercut ng | < 25.0.11 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | PaperCut |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 12, 2026 | Initial Analysis | [email protected] |
| May 5, 2026 | New CVE Received | PaperCut |