{"items":[{"id":"NVI-00016409","kind":"vulnerability","title":"React Router has Path Traversal in File Session Storage","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9583-h5hc-x8cw","CVE-2025-61686"],"plain_summary":"GitHub lists this reviewed advisory for @react-router/node, @remix-run/node, @remix-run/deno. 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-16aaf89589c0942cfe96608d6212aac5"],"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":"2026-09-18T21:03:29.000Z","value":"9.1 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6e8e9c23153d69bd19433631c315c896"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"17.346%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.97123. Missing scores are unknown.","source_id":"sr-16aaf89589c0942cfe96608d6212aac5"}],"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-6e8e9c23153d69bd19433631c315c896","url":"https://github.com/advisories/GHSA-9583-h5hc-x8cw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9583-h5hc-x8cw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T14:29:31.527Z"},{"id":"sr-16aaf89589c0942cfe96608d6212aac5","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-2025-61686","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.306Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6e8e9c23153d69bd19433631c315c896"],"technology":"@react-router/node","known_exclusions":[],"conditions_summary":"If applications use `createFileSessionStorage()` from `@react-router/node` (or `@remix-run/node`/`@remix-run/deno` in Remix v2) with an **unsigned cookie**, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. \n\nRead files cannot be returned directly to the attacker.  Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information.","public_affected_ranges":[">= 7.0.0, <= 7.9.3"]},{"certainty":"source_listed","source_ids":["sr-6e8e9c23153d69bd19433631c315c896"],"technology":"@remix-run/node","known_exclusions":[],"conditions_summary":"If applications use `createFileSessionStorage()` from `@react-router/node` (or `@remix-run/node`/`@remix-run/deno` in Remix v2) with an **unsigned cookie**, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. \n\nRead files cannot be returned directly to the attacker.  Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information.","public_affected_ranges":["<= 2.17.1"]},{"certainty":"source_listed","source_ids":["sr-6e8e9c23153d69bd19433631c315c896"],"technology":"@remix-run/deno","known_exclusions":[],"conditions_summary":"If applications use `createFileSessionStorage()` from `@react-router/node` (or `@remix-run/node`/`@remix-run/deno` in Remix v2) with an **unsigned cookie**, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. \n\nRead files cannot be returned directly to the attacker.  Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information.","public_affected_ranges":["<= 2.17.1"]}],"null_published_at":"2026-11-08T19:53:38.934Z","source_updated_at":"2026-09-18T21:03:29.000Z","source_disclosed_at":"2026-01-08T20:45:07.000Z","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":"2026-11-01T14:29:31.527Z"},{"id":"NVI-00016409","kind":"vulnerability","title":"React Router has Path Traversal in File Session Storage","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9583-h5hc-x8cw","CVE-2025-61686"],"plain_summary":"GitHub lists this reviewed advisory for @react-router/node, @remix-run/node, @remix-run/deno. 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-6e8e9c23153d69bd19433631c315c896"],"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":"2026-09-18T21:03:29.000Z","value":"9.1 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6e8e9c23153d69bd19433631c315c896"}],"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-6e8e9c23153d69bd19433631c315c896","url":"https://github.com/advisories/GHSA-9583-h5hc-x8cw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9583-h5hc-x8cw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T14:29:31.527Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6e8e9c23153d69bd19433631c315c896"],"technology":"@react-router/node","known_exclusions":[],"conditions_summary":"If applications use `createFileSessionStorage()` from `@react-router/node` (or `@remix-run/node`/`@remix-run/deno` in Remix v2) with an **unsigned cookie**, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. \n\nRead files cannot be returned directly to the attacker.  Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information.","public_affected_ranges":[">= 7.0.0, <= 7.9.3"]},{"certainty":"source_listed","source_ids":["sr-6e8e9c23153d69bd19433631c315c896"],"technology":"@remix-run/node","known_exclusions":[],"conditions_summary":"If applications use `createFileSessionStorage()` from `@react-router/node` (or `@remix-run/node`/`@remix-run/deno` in Remix v2) with an **unsigned cookie**, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. \n\nRead files cannot be returned directly to the attacker.  Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information.","public_affected_ranges":["<= 2.17.1"]},{"certainty":"source_listed","source_ids":["sr-6e8e9c23153d69bd19433631c315c896"],"technology":"@remix-run/deno","known_exclusions":[],"conditions_summary":"If applications use `createFileSessionStorage()` from `@react-router/node` (or `@remix-run/node`/`@remix-run/deno` in Remix v2) with an **unsigned cookie**, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the attack would depend on the permissions of the web server process to access those files. \n\nRead files cannot be returned directly to the attacker.  Session file reads would only succeed if the file matched the expected session file format. If the file matched the session file format, the data would be populated into the server side session but not directly returned to the attacker unless the application logic returned specific session information.","public_affected_ranges":["<= 2.17.1"]}],"null_published_at":"2026-11-04T10:04:27.941Z","source_updated_at":"2026-09-18T21:03:29.000Z","source_disclosed_at":"2026-01-08T20:45:07.000Z","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":"2026-11-01T14:29:31.527Z"}],"next_cursor":null,"snapshot_revision":"42594"}