CVE-2026-22219

Chainlit < 2.9.4 SQLAlchemy Data Layer SSRF via /project/element

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.

Affected

Chainlit

CVSS v4.0 VULNCHECK

8.3 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/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

CVSS v4.0 GitHub

8.3 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS v3.1 NVD

7.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

5.17% chance of exploitation in the next 30 days, 92nd percentile

Published

2026-01-19

Updated

2026-10-08

Proof-of-concept exploits (1)

• https://www.zafran.io/resources/chainleak-critical-ai-framework-vulnerabilities-expose-da…

Security advisories

• https://www.vulncheck.com/advisories/chainlit-sqlalchemy-data-layer-ssrf-via-project-elem…
• advisories/GHSA-2g59-m95p-pgfq
• Chainlit/chainlit/releases/tag/2.9.4

References

• CVE Record
• NVD entry