CVE-2026-77173
Received
Received - Intake
Confidentiality Bypass in LibreOffice via Filename Special Character
Vulnerability report for CVE-2026-77173, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-27
Last updated on: 2026-10-27
Assigner: HackerOne
Description
Description
A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Nextcloud | Files Confidential | 3.3.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-284 | The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
