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CVE-2026-22219— Chainlit < 2.9.4 SQLAlchemy Data Layer SSRF via /project/element

Quick assessment

Affected
Chainlit Chainlit
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Chainlit是chainlit开源的一个大模型对话界面框架。 Chainlit 2.9.4之前版本存在代码问题漏洞，该漏洞源于对/project/element更新流程中URL参数处理不当，可能导致服务器端请求伪造。

CVSS 8.3 · High EPSS 5.17% · P92

Affected Version Matrix 1

VendorProduct Version RangeStatus
Chainlit Chainlit < 2.9.4 affected
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I. Basic Information for CVE-2026-22219

Vulnerability Information
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Vulnerability Title
Chainlit < 2.9.4 SQLAlchemy Data Layer SSRF via /project/element
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Chainlit 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Chainlit是chainlit开源的一个大模型对话界面框架。 Chainlit 2.9.4之前版本存在代码问题漏洞，该漏洞源于对/project/element更新流程中URL参数处理不当，可能导致服务器端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Chainlit Chainlit 0 ~ 2.9.4 -

II. Public POCs for CVE-2026-22219

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III. Intelligence Information for CVE-2026-22219

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IV. Related Vulnerabilities

Same product: Chainlit
Same vendor: Chainlit
Same weakness: CWE-918