CVE-2026-41950

Name: CVE-2026-41950
Creator: NVD / NIST
Published: 2026-05-05T21:16:23.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6/10EPSS 0.33%

Last modified Jun 22, 2026

CVE-2026-41950 is a medium-severity vulnerability rated 6/10 on the CVSS scale. Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS 4.0

6/10

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.33%

25.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-639

Affected Software

Vendor	Product	Versions
Langgenius	Dify	< 1.14.0

References

https://github.com/langgenius/dify/releases/tag/1.14.0Release Notes
https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01dExploit, Third Party Advisory
https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuidThird Party Advisory
https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-apps
https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01dExploit, Third Party Advisory

Timeline

Published: May 5, 2026
Last Modified: Jun 22, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-41950?

How severe is CVE-2026-41950?

CVE-2026-41950 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2026-41950?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-41950?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST