{"items":[{"id":"NVI-00008884","kind":"vulnerability","title":"langgraph-api: Relative webhook targets in LangGraph Server can reach in-process routes without authentication","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-2c9q-c2q9-qgqv","CVE-2026-55235"],"plain_summary":"GitHub lists this reviewed advisory for langgraph-api. 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-179f5c0b6886209ae82bcc326fb57dfa"],"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":"2026-10-28T21:07:56.000Z","value":"5.9 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1930faf75edd56d7ecbdb92f97756589"},{"kind":"CVSS","as_of":"2026-09-30T17:51:56.193Z","value":"5.9 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-06a6b37e67cc1c7a24e6e9c54f3d5139"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.365%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.30486. Missing scores are unknown.","source_id":"sr-179f5c0b6886209ae82bcc326fb57dfa"}],"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-1930faf75edd56d7ecbdb92f97756589","url":"https://github.com/advisories/GHSA-2c9q-c2q9-qgqv","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2c9q-c2q9-qgqv","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-06a6b37e67cc1c7a24e6e9c54f3d5139","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55235","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55235","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:50.402Z"},{"id":"sr-179f5c0b6886209ae82bcc326fb57dfa","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-2026-55235","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.332Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1930faf75edd56d7ecbdb92f97756589"],"technology":"langgraph-api","known_exclusions":[],"conditions_summary":"## Summary\n\nIn affected versions of `langgraph-api` (the LangGraph Server runtime), a run or cron could be created with a relative webhook target. When the server later delivers such a webhook, it routes the request back into the same application through an in-process loopback transport that the authentication middleware treats as internal and does not authenticate. As a result, a relative webhook target could reach the server's own routes that operate on threads and runs without the authentication context that applies to ordinary external requests.\n\nIn deployments that scope threads and runs by owner, this could allow a request associated with one user to reach routes operating on another user's thread, resulting in creation of a run on (or modification of the state of) a thread owned by another user, even where the corresponding direct external requests were correctly denied. Limited metadata from the targeted thread may be incorporated into the created run record.\n\nWe have no evidence of this behavior occurring in the wild.\n\n## Affected users / systems\n\nYou may be affected if you:\n\n- run `langgraph-api` (the LangGraph Server / Agent Server runtime, including via the LangGraph Pl","public_affected_ranges":["< 0.10.0"]}],"null_published_at":"2026-11-08T19:53:38.939Z","source_updated_at":"2026-10-28T21:07:56.000Z","source_disclosed_at":"2026-08-19T18:55:57.000Z","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":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00008884","kind":"vulnerability","title":"langgraph-api: Relative webhook targets in LangGraph Server can reach in-process routes without authentication","revision":2,"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-2c9q-c2q9-qgqv","CVE-2026-55235"],"plain_summary":"GitHub lists this reviewed advisory for langgraph-api. 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-06a6b37e67cc1c7a24e6e9c54f3d5139"],"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":"2026-10-28T21:07:56.000Z","value":"5.9 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1930faf75edd56d7ecbdb92f97756589"},{"kind":"CVSS","as_of":"2026-09-30T17:51:56.193Z","value":"5.9 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-06a6b37e67cc1c7a24e6e9c54f3d5139"}],"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-1930faf75edd56d7ecbdb92f97756589","url":"https://github.com/advisories/GHSA-2c9q-c2q9-qgqv","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2c9q-c2q9-qgqv","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-06a6b37e67cc1c7a24e6e9c54f3d5139","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55235","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55235","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:50.402Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1930faf75edd56d7ecbdb92f97756589"],"technology":"langgraph-api","known_exclusions":[],"conditions_summary":"## Summary\n\nIn affected versions of `langgraph-api` (the LangGraph Server runtime), a run or cron could be created with a relative webhook target. When the server later delivers such a webhook, it routes the request back into the same application through an in-process loopback transport that the authentication middleware treats as internal and does not authenticate. As a result, a relative webhook target could reach the server's own routes that operate on threads and runs without the authentication context that applies to ordinary external requests.\n\nIn deployments that scope threads and runs by owner, this could allow a request associated with one user to reach routes operating on another user's thread, resulting in creation of a run on (or modification of the state of) a thread owned by another user, even where the corresponding direct external requests were correctly denied. Limited metadata from the targeted thread may be incorporated into the created run record.\n\nWe have no evidence of this behavior occurring in the wild.\n\n## Affected users / systems\n\nYou may be affected if you:\n\n- run `langgraph-api` (the LangGraph Server / Agent Server runtime, including via the LangGraph Pl","public_affected_ranges":["< 0.10.0"]}],"null_published_at":"2026-11-04T10:04:35.898Z","source_updated_at":"2026-10-28T21:07:56.000Z","source_disclosed_at":"2026-08-19T18:55:57.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00008884","kind":"vulnerability","title":"langgraph-api: Relative webhook targets in LangGraph Server can reach in-process routes without authentication","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2c9q-c2q9-qgqv","CVE-2026-55235"],"plain_summary":"GitHub lists this reviewed advisory for langgraph-api. 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-1930faf75edd56d7ecbdb92f97756589"],"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":"2026-10-28T21:07:56.000Z","value":"5.9 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1930faf75edd56d7ecbdb92f97756589"}],"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-1930faf75edd56d7ecbdb92f97756589","url":"https://github.com/advisories/GHSA-2c9q-c2q9-qgqv","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2c9q-c2q9-qgqv","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1930faf75edd56d7ecbdb92f97756589"],"technology":"langgraph-api","known_exclusions":[],"conditions_summary":"## Summary\n\nIn affected versions of `langgraph-api` (the LangGraph Server runtime), a run or cron could be created with a relative webhook target. When the server later delivers such a webhook, it routes the request back into the same application through an in-process loopback transport that the authentication middleware treats as internal and does not authenticate. As a result, a relative webhook target could reach the server's own routes that operate on threads and runs without the authentication context that applies to ordinary external requests.\n\nIn deployments that scope threads and runs by owner, this could allow a request associated with one user to reach routes operating on another user's thread, resulting in creation of a run on (or modification of the state of) a thread owned by another user, even where the corresponding direct external requests were correctly denied. Limited metadata from the targeted thread may be incorporated into the created run record.\n\nWe have no evidence of this behavior occurring in the wild.\n\n## Affected users / systems\n\nYou may be affected if you:\n\n- run `langgraph-api` (the LangGraph Server / Agent Server runtime, including via the LangGraph Pl","public_affected_ranges":["< 0.10.0"]}],"null_published_at":"2026-10-31T22:13:27.120Z","source_updated_at":"2026-10-28T21:07:56.000Z","source_disclosed_at":"2026-08-19T18:55:57.000Z","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":"2026-10-31T21:56:08.420Z"}],"next_cursor":null,"snapshot_revision":"42594"}