{"items":[{"id":"NVI-00011983","kind":"vulnerability","title":"MCP TypeScript SDK: Experimental tasks were not tied to the session that created them","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-22jm-h49p-29qw","CVE-2026-111767"],"plain_summary":"GitHub lists this reviewed advisory for @modelcontextprotocol/sdk. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-7924b495d1fdbd19ed208d6af29ba83c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-20T18:26:55.000Z","value":"8.6 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-7924b495d1fdbd19ed208d6af29ba83c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-7924b495d1fdbd19ed208d6af29ba83c","url":"https://github.com/advisories/GHSA-22jm-h49p-29qw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-22jm-h49p-29qw","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:39.183Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7924b495d1fdbd19ed208d6af29ba83c"],"technology":"@modelcontextprotocol/sdk","known_exclusions":[],"conditions_summary":"### Summary\nIn affected versions, the experimental tasks feature (`taskStore`) did not check which session created a task. Clients sharing one `InMemoryTaskStore` could list, read and cancel each other's tasks.\n\nExperimental tasks are deprecated. The 2026-07-28 specification replaced them with a redesigned extension. The best course of action is to stop using them.\n\n### Am I affected?\nOnly if your HTTP server passes `taskStore` to `McpServer` or `Server`. If `grep -ri taskstore --exclude-dir=node_modules .` finds nothing, you are not affected.\n\nAffected versions: `@modelcontextprotocol/sdk` 1.24.0 through 1.31.0. The 2.x packages are not affected.\n\n### Fix\nUpgrade to `@modelcontextprotocol/sdk` 1.32.0 or later. Each task is now tied to the session that created it, so a client that starts a new session can no longer reach its earlier tasks.\n\nIf you cannot upgrade yet, remove `taskStore`, or create one `InMemoryTaskStore` per session.","public_affected_ranges":[">= 1.24.0, < 1.32.0"]}],"null_published_at":"2026-11-01T01:03:56.619Z","source_updated_at":"2026-10-20T18:26:55.000Z","source_disclosed_at":"2026-10-20T18:26:54.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:13:39.183Z"}],"next_cursor":null,"snapshot_revision":"42594"}