{"action":"Upgrade chainlit to 2.12.0 or later.","affected":[{"fixed":"2.12.0","introduced":"2.4.0rc0"}],"component":"chainlit","cve_ids":["CVE-2026-45019"],"ecosystem":"PyPI","epss":0.00434,"exploited":false,"fixed_versions":["2.12.0"],"ghsa_id":"GHSA-hvfh-5mj3-5f3j","id":"tcs_01M5KFMEDFJRSRM2T4FNVKF6DW","modified_at":"2026-09-10T12:25:53.170074650Z","published_at":"2026-08-25T19:21:40Z","references":["https://osv.dev/vulnerability/GHSA-hvfh-5mj3-5f3j","https://github.com/Chainlit/chainlit/security/advisories/GHSA-hvfh-5mj3-5f3j","https://github.com/Chainlit/chainlit/commit/0565fd0eccb915fce159929598b053ed79f6e0c9","https://github.com/Chainlit/chainlit","https://github.com/Chainlit/chainlit/blob/2.12.0/docs/security-advisory-2026-mcp.md#spl-2026-002--ssrf-via-mcp-streamable-http--sse","https://github.com/Chainlit/chainlit/releases/tag/2.12.0"],"severity":{"label":"high","score":7.2},"sources":[{"source":"osv","source_id":"GHSA-hvfh-5mj3-5f3j","url":"https://osv.dev/vulnerability/GHSA-hvfh-5mj3-5f3j"}],"summary":"Chainlist has SSRF via MCP SSE and streamable-http transports that allows unauthenticated internal network access"}