CVE-2026-22219 Chainlit CVE debrief

Who should care

Users of Chainlit versions prior to 2.9.4 should apply the patch to prevent exploitation of this SSRF vulnerability. This vulnerability could allow attackers to access internal network services or cloud metadata endpoints. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability's impact on their environment and apply necessary mitigations.

Technical summary

The SSRF vulnerability in Chainlit arises from the /project/element update flow when using the SQLAlchemy data layer backend. An authenticated client can manipulate the Element with a user-controlled URL, leading to arbitrary HTTP GET requests from the Chainlit server. This could result in unauthorized access to internal services or cloud metadata. The vulnerability is rated as High severity with a CVSS score of 8.3.

Defensive priority

High

Recommended defensive actions

• Apply the patch to upgrade Chainlit to version 2.9.4 or later.
• Restrict access to the /project/element update flow to only necessary users.
• Monitor server logs for suspicious outbound HTTP requests.
• Implement additional security measures such as IP blocking or request filtering.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-01-20T00:15:49.053Z and was last modified on 2026-07-14T16:16:49.757Z. The NVD entry is currently Analyzed. Evidence is limited to public sources and may not reflect the full scope of affected systems or potential impacts. Defenders should verify the vulnerability's relevance to their environment and apply patches or mitigations as needed.

Official resources