chainlit has 7 CVEs on record. 4 were published in the last 90 days. The busiest recent month was August 2026 with 3. The median CVSS is 7.7 (high), with 1 rated critical. None have a confirmed exploitation report.
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 7.7
- Publish → KEV
- —
- Last 90 days
- 4 prev 1
Worst active — by depth score
CVE-2026-45018Critical· 9.8Chainlit is a Python framework for building production-ready conversational AI applications54CVE-2026-86099High· 8.2Chainlit through 2.12.0 fails to validate the client-supplied socket.io sessionId parameter, allowing unauthenticated attackers to traverse filesystem paths by injecting absolute or relative path sequences45CVE-2026-56104High· 8.2Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to restore and inherit authenticated user sessions by presenting a valid sessionId during WebSocket session restoration without owner…45CVE-2026-22219High· 7.7Chainlit 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 backend43CVE-2026-82290Medium· 5.3Chainlit through 2.12.0 fails to validate ownership of feedback records in PUT and DELETE endpoints41
chainlit vulnerabilities
CVEs affecting chainlit, newest first. Open any entry for full detail, references, and exploit status.
7 CVEsRSS
CVE-2026-86099High· 8.2Chainlit through 2.12.0 fails to validate the client-supplied socket.io sessionId parameter, allowing unauthenticated attackers to traverse filesystem paths by injecting absolute or relative path sequences
Chainlit through 2.12.0 fails to validate the client-supplied socket.io sessionId parameter, allowing unauthenticated attackers to traverse filesystem paths by injecting absolute or relative path sequences. Attackers can craft malicious …
CVE-2026-82290Medium· 5.3PoCChainlit through 2.12.0 fails to validate ownership of feedback records in PUT and DELETE endpoints
Chainlit through 2.12.0 fails to validate ownership of feedback records in PUT and DELETE endpoints. Authenticated attackers can delete or modify other users' feedback by supplying arbitrary feedback identifiers, corrupting human-rating …
CVE-2026-45018Critical· 9.8Chainlit is a Python framework for building production-ready conversational AI applications
Chainlit is a Python framework for building production-ready conversational AI applications. From 2.4.0rc0 until 2.12.0, Chainlit deployments with features.mcp.enabled set to true in .chainlit/config.toml expose the POST /mcp endpoint wi…
CVE-2026-45019High· 7.2Chainlit is a Python framework for building production-ready conversational AI applications
Chainlit is a Python framework for building production-ready conversational AI applications. From 2.4.0rc0 until 2.12.0, Chainlit deployments with features.mcp.enabled set to true in .chainlit/config.toml expose the POST /mcp endpoint wi…
CVE-2026-56104High· 8.2Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to restore and inherit authenticated user sessions by presenting a valid sessionId during WebSocket session restoration without owner…
Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to restore and inherit authenticated user sessions by presenting a valid sessionId during WebSocket session restoration without owner…
CVE-2026-22219High· 7.7Chainlit 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
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…
CVE-2025-68492Medium· 4.2Chainlit contains an authorization bypass vulnerability
Chainlit contains an authorization bypass vulnerability