CVE-2026-48520: CWE-73: External Control of File Name or Path in langflow-ai langflow
Langflow versions prior to 1.10.0 contain an external control of file name or path vulnerability in the Shareable Playground feature. This flaw allows public execution requests to specify file paths that Langflow will read and process, potentially exposing arbitrary local or S3-stored files. The vulnerability is fixed in version 1.10.0.
AI Analysis
Technical Summary
CVE-2026-48520 is an external control of file name or path vulnerability (CWE-73) in langflow-ai's langflow product. Specifically, in versions before 1.10.0, the Shareable Playground (also known as Public Flows) feature permits public execution of flows that accept a list of file paths. These paths can reference local files or S3 storage if configured, allowing an attacker to read arbitrary files by controlling the file path input. This vulnerability is addressed in langflow version 1.10.0.
Potential Impact
An attacker can cause langflow to read arbitrary files from local or configured S3 storage by specifying file paths in public flow execution requests. This results in disclosure of potentially sensitive information. The vulnerability does not affect integrity or availability but has high confidentiality impact. No known exploits in the wild have been reported.
Mitigation Recommendations
A patch is available in langflow version 1.10.0 that fixes this vulnerability. Users should upgrade to version 1.10.0 or later. Since langflow is a cloud service, the vendor typically manages remediation server-side; verify with the vendor advisory for confirmation. Until patched, avoid enabling the Shareable Playground feature or restrict public flow execution to trusted users.
CVE-2026-48520: CWE-73: External Control of File Name or Path in langflow-ai langflow
Description
Langflow versions prior to 1.10.0 contain an external control of file name or path vulnerability in the Shareable Playground feature. This flaw allows public execution requests to specify file paths that Langflow will read and process, potentially exposing arbitrary local or S3-stored files. The vulnerability is fixed in version 1.10.0.
CVSS v3.1
Score 6.1medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48520 is an external control of file name or path vulnerability (CWE-73) in langflow-ai's langflow product. Specifically, in versions before 1.10.0, the Shareable Playground (also known as Public Flows) feature permits public execution of flows that accept a list of file paths. These paths can reference local files or S3 storage if configured, allowing an attacker to read arbitrary files by controlling the file path input. This vulnerability is addressed in langflow version 1.10.0.
Potential Impact
An attacker can cause langflow to read arbitrary files from local or configured S3 storage by specifying file paths in public flow execution requests. This results in disclosure of potentially sensitive information. The vulnerability does not affect integrity or availability but has high confidentiality impact. No known exploits in the wild have been reported.
Mitigation Recommendations
A patch is available in langflow version 1.10.0 that fixes this vulnerability. Users should upgrade to version 1.10.0 or later. Since langflow is a cloud service, the vendor typically manages remediation server-side; verify with the vendor advisory for confirmation. Until patched, avoid enabling the Shareable Playground feature or restrict public flow execution to trusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-21T16:18:10.619Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 6a3ab6d9eed863c81e4f9e97
Added to database: 06/23/2026, 16:39:53 UTC
Last enriched: 06/23/2026, 16:56:08 UTC
Last updated: 06/23/2026, 20:55:32 UTC
Views: 5
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