SSRF in Chainlit
CVE-2026-22219
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.051 (92.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.045 · newest: 0.051 · change: +0.005
Affected products
- Chainlit — versions 0
Weakness classification (CWE)
References
- github.com/Chainlit/chainlit/releases/tag/2.9.4 (release-notes, Product, Release Notes, patch)
- www.zafran.io/resources/chainleak-critical-ai-framework-vulnerabilities-expose-… (Exploit, technical-description, Third Party Advisory, exploit, Mitigation)
- www.vulncheck.com/advisories/chainlit-sqlalchemy-data-layer-ssrf-via-project-el… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-22219?
- CVE-2026-22219 is a high-severity vulnerability in Chainlit, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-01-20.
- How severe is CVE-2026-22219?
- High severity. CVSS v3 base score is 7.7 out of 10.