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

Quick assessment

Affected
outline outline
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Outline是Outline开源的一个知识库。 Outline 1.4.0之前版本存在路径遍历漏洞，该漏洞源于JSON导入过程中对导入的attachments[].key值验证不足，可能导致攻击者读取服务器上的任意文件。

CVSS 5.5 · Medium EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2026-25062

Vulnerability Information
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Vulnerability Title
Outline Affected an Arbitrary File Read via Path Traversal in JSON Import
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Outline 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Outline是Outline开源的一个知识库。 Outline 1.4.0之前版本存在路径遍历漏洞，该漏洞源于JSON导入过程中对导入的attachments[].key值验证不足，可能导致攻击者读取服务器上的任意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
outline outline < 1.4.0 -

II. Public POCs for CVE-2026-25062

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III. Intelligence Information for CVE-2026-25062

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Vendor Advisories for CVE-2026-25062 (1)

Same Patch Batch · outline · 2026-02-11 · 3 CVEs total

CVE-2025-64487 7.6 HIGH Outline is vulnerable to privilege escalation vulnerability in document sharing
CVE-2025-68663 Outline has a suspended user authentication bypass via WebSocket connections

IV. Related Vulnerabilities

Same product: outline
Same vendor: outline
Same weakness: CWE-22

V. Comments for CVE-2026-25062

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