Vulnerability · Published Feb 11, 2026 · Assigned by GitHub_M

CVE-2026-25062Outline Affected an Arbitrary File Read via Path Traversal in JSON Import

Medium 5.5

In plain English

A medium-severity path traversal in outline from outline. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.4%top 61.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Outline is a service that allows for collaborative documentation. Prior to 1.4.0, during the JSON import process, the value of attachments[].key from the imported JSON is passed directly to path.join(rootPath, node.key) and then read using fs.readFile without validation. By embedding path traversal sequences such as ../ or absolute paths, an attacker can read arbitrary files on the server and import them as attachments. This vulnerability is fixed in 1.4.0.

Affected products (as reported)

Vendor	Product	Versions
outline	outline	< 1.4.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

References

https://github.com/outline/outline/security/advisories/GHSA-7r4f-3wjv-83xf x_refsource_CONFIRM
https://github.com/outline/outline/releases/tag/v1.4.0 x_refsource_MISC