{"items":[{"id":"NVI-00016174","kind":"vulnerability","title":"MCP Python SDK has Unhandled Exception in Streamable HTTP Transport, Leading to Denial of Service","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j975-95f5-7wqh","CVE-2025-53365"],"plain_summary":"GitHub lists this reviewed advisory for mcp. 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-3a93a6d032723ba04385249bb2d00813"],"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":[],"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-3a93a6d032723ba04385249bb2d00813","url":"https://github.com/advisories/GHSA-j975-95f5-7wqh","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-j975-95f5-7wqh","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3a93a6d032723ba04385249bb2d00813"],"technology":"mcp","known_exclusions":[],"conditions_summary":"If a client deliberately triggers an exception after establishing a streamable HTTP session, this can lead to an uncaught ClosedResourceError on the server side, causing the server to crash and requiring a restart to restore service. Impact may vary depending on the deployment conditions, and presence of infrastructure-level resilience measures.\n\nThank you to Rich Harang for reporting this issue.","public_affected_ranges":["< 1.10.0"]}],"null_published_at":"2026-11-04T10:04:27.901Z","source_updated_at":"2026-07-16T18:30:56.000Z","source_disclosed_at":"2025-07-04T22:06:31.000Z","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":"2026-11-04T09:59:26.779Z"}],"next_cursor":null,"snapshot_revision":"42594"}