PT-2026-66536 · Ibm · Langflow Oss

CVE-2026-10700

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Published

2026-07-30

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Updated

2026-07-30

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
IBM Langflow OSS 1.0.0 through 1.8.4 contains multiple broken access control vulnerabilities in its file handling API that allow unauthorized access to user files.The /api/v1/files/images/{flow id}/{file name} endpoint does not enforce authentication or authorization checks, allowing unauthenticated remote attackers to retrieve image files associated with any flow by specifying a valid flow id and file name.Additionally, the /api/v1/files/download/{flow id}/{file name} endpoint requires authentication but fails to properly validate ownership of the requested resource. As a result, an authenticated user can access files belonging to other users by supplying arbitrary identifiers, leading to an authorization bypass (IDOR).Successful exploitation may result in unauthorized disclosure of sensitive data, including files stored in private flows. This issue breaks tenant isolation in multi-user deployments.

Fix

IDOR

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Weakness Enumeration

Related Identifiers

CVE-2026-10700

Affected Products

Langflow Oss