CVE-2026-22219
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-02-02

Assigner: VulnCheck

Description
Chainlit versions prior to 2.9.4 contain a server-side request forgery (SSRF) vulnerability in the /project/element update flow when configured with the SQLAlchemy data layer backend. An authenticated client can provide a user-controlled url value in an Element, which is fetched by the SQLAlchemy element creation logic using an outbound HTTP GET request. This allows an attacker to make arbitrary HTTP requests from the Chainlit server to internal network services or cloud metadata endpoints and store the retrieved responses via the configured storage provider.
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Meta Information
Published
2026-01-20
Last Modified
2026-02-02
Generated
2026-06-16
AI Q&A
2026-01-20
EPSS Evaluated
2026-06-15
NVD
CVE-2026-22219
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
chainlit chainlit to 2.9.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
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Executive Summary

CVE-2026-22219 is a Server-Side Request Forgery (SSRF) vulnerability in Chainlit versions prior to 2.9.4 when using the SQLAlchemy data layer backend. An authenticated user can provide a URL in an Element during the /project/element update flow. The server then makes an HTTP GET request to this user-controlled URL. This allows an attacker to make arbitrary HTTP requests from the Chainlit server to internal network services or cloud metadata endpoints and capture the responses. [1]

Impact Analysis

This vulnerability can allow an attacker to make unauthorized HTTP requests from the Chainlit server to internal or cloud services that are normally inaccessible externally. The attacker can retrieve sensitive information from internal network services or cloud metadata endpoints and store this data via the configured storage provider. This can lead to data exposure and compromise of internal systems. [1]

Detection Guidance

Detection involves monitoring for unusual outbound HTTP GET requests originating from the Chainlit server, especially to internal network services or cloud metadata endpoints. Since the vulnerability is triggered via the /project/element update flow by an authenticated client supplying a user-controlled URL, reviewing logs for such requests or suspicious URL parameters in requests to /project/element can help. Specific commands are not provided in the resources. [1]

Mitigation Strategies

The immediate mitigation step is to upgrade Chainlit to version 2.9.4 or later, where this SSRF vulnerability has been fixed. Additionally, restricting authenticated user permissions and monitoring outbound HTTP requests from the server can help reduce risk until the upgrade is applied. [1]

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