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CVE-2026-41949

5.9 · MEDIUM

Dify before version 1.14.2 contains an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document acr…

Published May 18, 2026CWE-639EPSS 0.57%

Overview

CVE-2026-41949 is a medium-severity vulnerability. It was published on May 18, 2026 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Dify before version 1.14.2 contains an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up to 3,000 characters of any uploaded document across all tenants and workspaces using only the file's UUID. Attackers can access the /console/api/files/{file_id}/preview endpoint with an intercepted file UUID to extract sensitive content from documents without ownership or workspace permission verification. NOTE: Dify Cloud allows unauthenticated free self-registration, making account creation trivially accessible to any attacker.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/langgenius/dify/commit/432a6412a3fdb30ce48003d699b90cc7d890df20GitHubgithub.com/langgenius/dify/pull/35797GitHubgithub.com/langgenius/dify/releases/tag/1.14.2Refhuntr.com/bounties/d50a0240-7951-4939-b989-9bded66c7682Refwww.vulncheck.com/advisories/dify-authorization-bypass-via-file-preview-endpointRefwww.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-apps

How CyberStrike helps

Frequently asked questions

What is CVE-2026-41949?

CVE-2026-41949 is a medium-severity vulnerability. It was published on May 18, 2026 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2026-41949?

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-41949?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-41949?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-41949 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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