{"items":[{"id":"NVI-00010772","kind":"vulnerability","title":"obsidian-tc HTTP transport lacks Origin/DNS-rebinding protection, enabling drive-by vault access on loopback","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pqh8-4pj7-32xx","CVE-2026-77363"],"plain_summary":"GitHub lists this reviewed advisory for obsidian-tc. 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-00fb38fe7280fa9f13db1cb585bc4c79"],"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},{"summary":"The original advisory lists fixed boundaries 1.3.1 for obsidian-tc. Confirm the publisher’s latest guidance.","source_ids":["sr-379a40c8bc42aae83f63e7432f8ced93"],"action_type":"vendor_patch","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":"2026-10-23T18:29:05.000Z","value":"9.6 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-f7899a013072d4de2c6935e7524d175c"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.155%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.04627. Missing scores are unknown.","source_id":"sr-00fb38fe7280fa9f13db1cb585bc4c79"}],"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-f7899a013072d4de2c6935e7524d175c","url":"https://github.com/advisories/GHSA-pqh8-4pj7-32xx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pqh8-4pj7-32xx","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:08.657Z"},{"id":"sr-379a40c8bc42aae83f63e7432f8ced93","url":"https://github.com/advisories/GHSA-pqh8-4pj7-32xx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-pqh8-4pj7-32xx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-11-05T03:48:39.034Z"},{"id":"sr-00fb38fe7280fa9f13db1cb585bc4c79","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-77363","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.286Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f7899a013072d4de2c6935e7524d175c"],"technology":"obsidian-tc","known_exclusions":[],"conditions_summary":"### Impact\nThe Streamable HTTP transport was constructed without `enableDnsRebindingProtection`/`allowedHosts`/`allowedOrigins` and performed no `Origin`-header validation. With the documented `auth.mode: \"none\"` loopback default, a **drive-by web page could `POST http://127.0.0.1/mcp`** and receive caller `http-local` with scopes `[\"*\"]` — full vault read/write — via DNS rebinding / a forged Origin.\n\n### Patches\nFixed in **1.3.1**. Upgrade to `>= 1.3.1`. The transport now enables DNS-rebinding protection and allowed hosts/origins and returns HTTP 403 on an invalid Origin (per MCP 2025-11-25).\n\n### Workarounds\nDo not expose the HTTP transport with `auth.mode: \"none\"`; require JWT auth, or bind to a non-loopback interface behind a proxy that validates `Origin`.","public_affected_ranges":["< 1.3.1"]},{"certainty":"source_listed","source_ids":["sr-379a40c8bc42aae83f63e7432f8ced93"],"technology":"obsidian-tc","known_exclusions":[],"conditions_summary":"### Impact\nThe Streamable HTTP transport was constructed without `enableDnsRebindingProtection`/`allowedHosts`/`allowedOrigins` and performed no `Origin`-header validation. With the documented `auth.mode: \"none\"` loopback default, a **drive-by web page could `POST http://127.0.0.1/mcp`** and receive caller `http-local` with scopes `[\"*\"]` — full vault read/write — via DNS rebinding / a forged Origin.\n\n### Patches\nFixed in **1.3.1**. Upgrade to `>= 1.3.1`. The transport now enables DNS-rebinding protection and allowed hosts/origins and returns HTTP 403 on an invalid Origin (per MCP 2025-11-25).\n\n### Workarounds\nDo not expose the HTTP transport with `auth.mode: \"none\"`; require JWT auth, or bind to a non-loopback interface behind a proxy that validates `Origin`.","public_affected_ranges":["SEMVER: introduced 0; fixed 1.3.1"]}],"null_published_at":"2026-11-05T03:52:54.734Z","source_updated_at":"2026-10-23T18:29:05.000Z","source_disclosed_at":"2026-10-23T18:29:02.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T22:07:08.657Z"},{"id":"NVI-00010772","kind":"vulnerability","title":"obsidian-tc HTTP transport lacks Origin/DNS-rebinding protection, enabling drive-by vault access on loopback","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pqh8-4pj7-32xx","CVE-2026-77363"],"plain_summary":"GitHub lists this reviewed advisory for obsidian-tc. 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-00fb38fe7280fa9f13db1cb585bc4c79"],"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":"2026-10-23T18:29:05.000Z","value":"9.6 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-f7899a013072d4de2c6935e7524d175c"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.155%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.04627. Missing scores are unknown.","source_id":"sr-00fb38fe7280fa9f13db1cb585bc4c79"}],"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-f7899a013072d4de2c6935e7524d175c","url":"https://github.com/advisories/GHSA-pqh8-4pj7-32xx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pqh8-4pj7-32xx","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:08.657Z"},{"id":"sr-00fb38fe7280fa9f13db1cb585bc4c79","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-77363","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.286Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f7899a013072d4de2c6935e7524d175c"],"technology":"obsidian-tc","known_exclusions":[],"conditions_summary":"### Impact\nThe Streamable HTTP transport was constructed without `enableDnsRebindingProtection`/`allowedHosts`/`allowedOrigins` and performed no `Origin`-header validation. With the documented `auth.mode: \"none\"` loopback default, a **drive-by web page could `POST http://127.0.0.1/mcp`** and receive caller `http-local` with scopes `[\"*\"]` — full vault read/write — via DNS rebinding / a forged Origin.\n\n### Patches\nFixed in **1.3.1**. Upgrade to `>= 1.3.1`. The transport now enables DNS-rebinding protection and allowed hosts/origins and returns HTTP 403 on an invalid Origin (per MCP 2025-11-25).\n\n### Workarounds\nDo not expose the HTTP transport with `auth.mode: \"none\"`; require JWT auth, or bind to a non-loopback interface behind a proxy that validates `Origin`.","public_affected_ranges":["< 1.3.1"]}],"null_published_at":"2026-11-02T20:21:07.733Z","source_updated_at":"2026-10-23T18:29:05.000Z","source_disclosed_at":"2026-10-23T18:29:02.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:07:08.657Z"},{"id":"NVI-00010772","kind":"vulnerability","title":"obsidian-tc HTTP transport lacks Origin/DNS-rebinding protection, enabling drive-by vault access on loopback","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pqh8-4pj7-32xx","CVE-2026-77363"],"plain_summary":"GitHub lists this reviewed advisory for obsidian-tc. 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-f7899a013072d4de2c6935e7524d175c"],"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":"2026-10-23T18:29:05.000Z","value":"9.6 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-f7899a013072d4de2c6935e7524d175c"}],"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-f7899a013072d4de2c6935e7524d175c","url":"https://github.com/advisories/GHSA-pqh8-4pj7-32xx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pqh8-4pj7-32xx","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:08.657Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f7899a013072d4de2c6935e7524d175c"],"technology":"obsidian-tc","known_exclusions":[],"conditions_summary":"### Impact\nThe Streamable HTTP transport was constructed without `enableDnsRebindingProtection`/`allowedHosts`/`allowedOrigins` and performed no `Origin`-header validation. With the documented `auth.mode: \"none\"` loopback default, a **drive-by web page could `POST http://127.0.0.1/mcp`** and receive caller `http-local` with scopes `[\"*\"]` — full vault read/write — via DNS rebinding / a forged Origin.\n\n### Patches\nFixed in **1.3.1**. Upgrade to `>= 1.3.1`. The transport now enables DNS-rebinding protection and allowed hosts/origins and returns HTTP 403 on an invalid Origin (per MCP 2025-11-25).\n\n### Workarounds\nDo not expose the HTTP transport with `auth.mode: \"none\"`; require JWT auth, or bind to a non-loopback interface behind a proxy that validates `Origin`.","public_affected_ranges":["< 1.3.1"]}],"null_published_at":"2026-10-31T22:27:12.382Z","source_updated_at":"2026-10-23T18:29:05.000Z","source_disclosed_at":"2026-10-23T18:29:02.000Z","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":"2026-10-31T22:07:08.657Z"}],"next_cursor":null,"snapshot_revision":"42594"}