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CVE-2026-41649— Outline has IDOR in document share creation that allows unauthorized access to private documents across workspaces

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 0.86.0版本至1.7.0之前版本存在安全漏洞，该漏洞源于不安全的直接对象引用，当请求中同时提供collectionId和documentId时，授权逻辑仅检查对集合的访问，完全忽略文档，可能导致经过身份验证的攻击者为平台上的任何文档生成有效的公共共享链接，并通过documents.info端点检索完整文档内容。

CVSS 7.7 · High EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
outline outline >= 0.86.0, < 1.7.0 affected
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I. Basic Information for CVE-2026-41649

Vulnerability Information
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Vulnerability Title
Outline has IDOR in document share creation that allows unauthorized access to private documents across workspaces
Source: CVE Program / CVE List V5
Vulnerability Description
Outline is a service that allows for collaborative documentation. The `shares.create` API endpoint starting in version 0.86.0 and prior to version 1.7.0 has an insecure direct object reference.. When both `collectionId` and `documentId` are provided in the request, the authorization logic only checks access to the collection, completely ignoring the document. This allows an authenticated attacker to generate a valid public share link for any document on the platform, including documents belonging to other workspaces. The full document contents can then be retrieved via the `documents.info` endpoint. Version 1.7.0 contains a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Outline 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Outline是Outline开源的一个知识库。 Outline 0.86.0版本至1.7.0之前版本存在安全漏洞，该漏洞源于不安全的直接对象引用，当请求中同时提供collectionId和documentId时，授权逻辑仅检查对集合的访问，完全忽略文档，可能导致经过身份验证的攻击者为平台上的任何文档生成有效的公共共享链接，并通过documents.info端点检索完整文档内容。
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 >= 0.86.0, < 1.7.0 -

II. Public POCs for CVE-2026-41649

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III. Intelligence Information for CVE-2026-41649

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Patches & Fixes for CVE-2026-41649 (1)

Vendor Advisories for CVE-2026-41649 (1)

Vendor Pages for CVE-2026-41649 (1)

IV. Related Vulnerabilities

Same product: outline
Same vendor: outline
Same weakness: CWE-639

V. Comments for CVE-2026-41649

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