{"items":[{"id":"NVI-00013206","kind":"vulnerability","title":"Langflow: Logout button does not clear session","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-7hw8-6q6r-4276","CVE-2026-55423"],"plain_summary":"GitHub lists this reviewed advisory for langflow. 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-050b9df8daabec61b9acbcf583b3e322"],"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":"2026-09-24T14:57:12.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8fbe1a7b674c6bdb4856784f8a1950fd"},{"kind":"CVSS","as_of":"2026-10-25T23:10:00.167Z","value":"6.1 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-44b94f51f9e2126023ed47f09fe7f167"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.222%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.12753. Missing scores are unknown.","source_id":"sr-050b9df8daabec61b9acbcf583b3e322"}],"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-8fbe1a7b674c6bdb4856784f8a1950fd","url":"https://github.com/advisories/GHSA-7hw8-6q6r-4276","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7hw8-6q6r-4276","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-44b94f51f9e2126023ed47f09fe7f167","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55423","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55423","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:50.402Z"},{"id":"sr-050b9df8daabec61b9acbcf583b3e322","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-2026-55423","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.857Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8fbe1a7b674c6bdb4856784f8a1950fd"],"technology":"langflow","known_exclusions":[],"conditions_summary":"### Summary\nThe logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in.\n\n### Details\nNot in auto login mode. Hosted on localhost. `access_token_lf` remains present in both Local Storage and Cookies. `refresh_token_lf` remains present in Cookies.\n\n**Root cause:** the `/logout` endpoint deleted the authentication cookies without matching the original `httponly`/`samesite`/`secure`/`domain` parameters, so the browser kept them; additionally the frontend did not clear the auth cookies on logout.\n\n```\nLANGFLOW_AUTO_LOGIN: \"False\"\nLANGFLOW_SUPERUSER: \nLANGFLOW_SUPERUSER_PASSWORD: \nLANGFLOW_SECRET_KEY: \nLANGFLOW_NEW_USER_IS_ACTIVE: \"False\"\nLANGFLOW_ENABLE_SUPERUSER_CLI: \"False\"\n```\n\n### PoC\nClick Logout. Hit refresh to return to previous screen.\n\n### Impact\nUsers on shared computers may falsely believe they have terminated their session.\n\n### Patches\nFixed in **1.7.0** (PRs #10527 and #10528). The logout endpoint now deletes the auth cookies using the same parameters they were created with, and the frontend clears the auth cookies on logout. Upgrade to **1.7.0 or later**.","public_affected_ranges":["< 1.7.0"]}],"null_published_at":"2026-11-04T10:04:35.946Z","source_updated_at":"2026-09-24T14:57:12.000Z","source_disclosed_at":"2026-06-19T21:17:01.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013206","kind":"vulnerability","title":"Langflow: Logout button does not clear session","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7hw8-6q6r-4276","CVE-2026-55423"],"plain_summary":"GitHub lists this reviewed advisory for langflow. 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-050b9df8daabec61b9acbcf583b3e322"],"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":"2026-09-24T14:57:12.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8fbe1a7b674c6bdb4856784f8a1950fd"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.222%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.12753. Missing scores are unknown.","source_id":"sr-050b9df8daabec61b9acbcf583b3e322"}],"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-8fbe1a7b674c6bdb4856784f8a1950fd","url":"https://github.com/advisories/GHSA-7hw8-6q6r-4276","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7hw8-6q6r-4276","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-050b9df8daabec61b9acbcf583b3e322","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-2026-55423","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.857Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8fbe1a7b674c6bdb4856784f8a1950fd"],"technology":"langflow","known_exclusions":[],"conditions_summary":"### Summary\nThe logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in.\n\n### Details\nNot in auto login mode. Hosted on localhost. `access_token_lf` remains present in both Local Storage and Cookies. `refresh_token_lf` remains present in Cookies.\n\n**Root cause:** the `/logout` endpoint deleted the authentication cookies without matching the original `httponly`/`samesite`/`secure`/`domain` parameters, so the browser kept them; additionally the frontend did not clear the auth cookies on logout.\n\n```\nLANGFLOW_AUTO_LOGIN: \"False\"\nLANGFLOW_SUPERUSER: \nLANGFLOW_SUPERUSER_PASSWORD: \nLANGFLOW_SECRET_KEY: \nLANGFLOW_NEW_USER_IS_ACTIVE: \"False\"\nLANGFLOW_ENABLE_SUPERUSER_CLI: \"False\"\n```\n\n### PoC\nClick Logout. Hit refresh to return to previous screen.\n\n### Impact\nUsers on shared computers may falsely believe they have terminated their session.\n\n### Patches\nFixed in **1.7.0** (PRs #10527 and #10528). The logout endpoint now deletes the auth cookies using the same parameters they were created with, and the frontend clears the auth cookies on logout. Upgrade to **1.7.0 or later**.","public_affected_ranges":["< 1.7.0"]}],"null_published_at":"2026-11-03T17:49:15.004Z","source_updated_at":"2026-09-24T14:57:12.000Z","source_disclosed_at":"2026-06-19T21:17:01.000Z","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":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013206","kind":"vulnerability","title":"Langflow: Logout button does not clear session","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7hw8-6q6r-4276","CVE-2026-55423"],"plain_summary":"GitHub lists this reviewed advisory for langflow. 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-8fbe1a7b674c6bdb4856784f8a1950fd"],"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":"2026-09-24T14:57:12.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8fbe1a7b674c6bdb4856784f8a1950fd"}],"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-8fbe1a7b674c6bdb4856784f8a1950fd","url":"https://github.com/advisories/GHSA-7hw8-6q6r-4276","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7hw8-6q6r-4276","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8fbe1a7b674c6bdb4856784f8a1950fd"],"technology":"langflow","known_exclusions":[],"conditions_summary":"### Summary\nThe logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in.\n\n### Details\nNot in auto login mode. Hosted on localhost. `access_token_lf` remains present in both Local Storage and Cookies. `refresh_token_lf` remains present in Cookies.\n\n**Root cause:** the `/logout` endpoint deleted the authentication cookies without matching the original `httponly`/`samesite`/`secure`/`domain` parameters, so the browser kept them; additionally the frontend did not clear the auth cookies on logout.\n\n```\nLANGFLOW_AUTO_LOGIN: \"False\"\nLANGFLOW_SUPERUSER: \nLANGFLOW_SUPERUSER_PASSWORD: \nLANGFLOW_SECRET_KEY: \nLANGFLOW_NEW_USER_IS_ACTIVE: \"False\"\nLANGFLOW_ENABLE_SUPERUSER_CLI: \"False\"\n```\n\n### PoC\nClick Logout. Hit refresh to return to previous screen.\n\n### Impact\nUsers on shared computers may falsely believe they have terminated their session.\n\n### Patches\nFixed in **1.7.0** (PRs #10527 and #10528). The logout endpoint now deletes the auth cookies using the same parameters they were created with, and the frontend clears the auth cookies on logout. Upgrade to **1.7.0 or later**.","public_affected_ranges":["< 1.7.0"]}],"null_published_at":"2026-11-01T07:29:12.929Z","source_updated_at":"2026-09-24T14:57:12.000Z","source_disclosed_at":"2026-06-19T21:17:01.000Z","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":"2026-11-01T07:25:10.521Z"}],"next_cursor":null,"snapshot_revision":"42594"}