CVE-2026-25062
Path Traversal in Outline JSON Import Allows Arbitrary File Read
Publication date: 2026-02-11
Last updated on: 2026-02-20
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| getoutline | outline | to 1.4.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-22 | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Outline service before version 1.4.0 during the JSON import process. Specifically, the value of attachments[].key from the imported JSON is used directly in a file path operation without validation. An attacker can exploit this by embedding path traversal sequences like ../ or absolute paths, allowing them to read arbitrary files on the server and import them as attachments.
How can this vulnerability impact me? :
The vulnerability allows an attacker with high privileges to read arbitrary files on the server by exploiting the path traversal flaw during JSON import. This can lead to unauthorized disclosure of sensitive information stored on the server, potentially compromising confidentiality.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade the Outline service to version 1.4.0 or later, where the issue has been fixed.