CVE-2026-4503 Details
Description
IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.
An insecure direct object reference vulnerability has been identified in IBM Langflow Desktop versions 1.0.0 through 1.8.4. This vulnerability allows unauthenticated users to access images belonging to other users by exploiting a lack of proper authorization checks in the image retrieval feature. The issue arises in the 'GET /api/v1/files/images/{flow_id}/{file_name}' endpoint, where users can manipulate the flow identifier and filename to access unauthorized image files. This flaw could lead to the exposure of sensitive information contained in these images.
Users are advised to upgrade to IBM Langflow Desktop version 1.9.0 or newer. Instructions for downloading Langflow Desktop 1.9.0 are available on the Langflow website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7271099 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| langflow langflow desktop | >= 1.0.0, <= 1.8.4 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 11, 2026 | Initial Analysis | [email protected] |
| Apr 30, 2026 | New CVE Received | [email protected] |