{"action":"Upgrade github.com/modelcontextprotocol/go-sdk to 1.4.1 or later.","affected":[{"fixed":"1.4.1","introduced":"0"}],"component":"github.com/modelcontextprotocol/go-sdk","cve_ids":["CVE-2026-33252"],"ecosystem":"Go","epss":0.00181,"exploited":false,"fixed_versions":["1.4.1"],"ghsa_id":"GHSA-89xv-2j6f-qhc8","id":"tcs_01M5KGG02V9NKNM4M6H89GMR3Y","modified_at":"2026-03-25T15:29:12.946702Z","published_at":"2026-03-23T18:14:51Z","references":["https://osv.dev/vulnerability/GO-2026-4773","https://github.com/modelcontextprotocol/go-sdk/security/advisories/GHSA-89xv-2j6f-qhc8","https://github.com/modelcontextprotocol/go-sdk/commit/a433a831d6e5d5ac3b9e625a8095aa8eaa040dfc"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GO-2026-4773","url":"https://osv.dev/vulnerability/GO-2026-4773"},{"source":"nvd","source_id":"CVE-2026-33252","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33252"}],"summary":"Cross-Site Tool Execution for HTTP Servers without Authorizatrion in github.com/modelcontextprotocol/go-sdk"}