{"items":[{"id":"NVI-00009128","kind":"vulnerability","title":"OAuthLib: Token grants can use attacker-supplied client_id for authorization after authenticating a different client","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-7984-qgvg-3j9c","CVE-2026-118669"],"plain_summary":"GitHub lists this reviewed advisory for oauthlib. 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-17d513ed76789f6e6fb58470dff55fb6"],"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":"2026-10-29T16:19:37.750Z","value":"8.4 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-26181e3edcc4edf836568f9c76b6c5e5"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.312%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.24156. Missing scores are unknown.","source_id":"sr-17d513ed76789f6e6fb58470dff55fb6"}],"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-c16c4e29e0bcaf3f6d38c74a8f2b8b00","url":"https://github.com/advisories/GHSA-7984-qgvg-3j9c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7984-qgvg-3j9c","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"},{"id":"sr-26181e3edcc4edf836568f9c76b6c5e5","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118669","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-118669","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:59:16.598Z"},{"id":"sr-17d513ed76789f6e6fb58470dff55fb6","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-2026-118669","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.268Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-c16c4e29e0bcaf3f6d38c74a8f2b8b00"],"technology":"oauthlib","known_exclusions":[],"conditions_summary":"## Summary\n\nOAuthlib's token grant handlers can authenticate one client while authorizing the grant type and requested scopes using a different, attacker-supplied `client_id` from the request body.\n\nIn affected token grant flows, `authenticate_client(request)` sets `request.client` to the authenticated client object, but OAuthlib does not require `request.client_id` to match `request.client.client_id`. If the request body already contains `client_id=...`, OAuthlib keeps that value and passes it to `validate_grant_type()` and `validate_scopes()`.\n\nAs a result, an authenticated low-privilege confidential client can authenticate as itself, submit another client's `client_id` in the token request body, and cause grant and scope validation to run under that other client identity.\n\n## Affected Surface\n\nThe affected public surface is the OAuth2 token endpoint handling for:\n\n- `client_credentials`\n- `password` / Resource Owner Password Credentials\n\nThe issue is relevant to OAuthlib provider deployments where:\n\n- the attacker has credentials for one valid lower-privilege confidential client;\n- another client has broader grants or scopes;\n- the application validator uses the `client_id` argu","public_affected_ranges":["< 4.0.0"]}],"null_published_at":"2026-11-03T17:49:18.505Z","source_updated_at":"2026-10-30T22:58:18.000Z","source_disclosed_at":"2026-10-30T22:58:16.000Z","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":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009128","kind":"vulnerability","title":"OAuthLib: Token grants can use attacker-supplied client_id for authorization after authenticating a different client","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-7984-qgvg-3j9c","CVE-2026-118669"],"plain_summary":"GitHub lists this reviewed advisory for oauthlib. 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-26181e3edcc4edf836568f9c76b6c5e5"],"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":"2026-10-29T16:19:37.750Z","value":"8.4 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-26181e3edcc4edf836568f9c76b6c5e5"}],"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-c16c4e29e0bcaf3f6d38c74a8f2b8b00","url":"https://github.com/advisories/GHSA-7984-qgvg-3j9c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7984-qgvg-3j9c","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"},{"id":"sr-26181e3edcc4edf836568f9c76b6c5e5","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118669","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-118669","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:59:16.598Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-c16c4e29e0bcaf3f6d38c74a8f2b8b00"],"technology":"oauthlib","known_exclusions":[],"conditions_summary":"## Summary\n\nOAuthlib's token grant handlers can authenticate one client while authorizing the grant type and requested scopes using a different, attacker-supplied `client_id` from the request body.\n\nIn affected token grant flows, `authenticate_client(request)` sets `request.client` to the authenticated client object, but OAuthlib does not require `request.client_id` to match `request.client.client_id`. If the request body already contains `client_id=...`, OAuthlib keeps that value and passes it to `validate_grant_type()` and `validate_scopes()`.\n\nAs a result, an authenticated low-privilege confidential client can authenticate as itself, submit another client's `client_id` in the token request body, and cause grant and scope validation to run under that other client identity.\n\n## Affected Surface\n\nThe affected public surface is the OAuth2 token endpoint handling for:\n\n- `client_credentials`\n- `password` / Resource Owner Password Credentials\n\nThe issue is relevant to OAuthlib provider deployments where:\n\n- the attacker has credentials for one valid lower-privilege confidential client;\n- another client has broader grants or scopes;\n- the application validator uses the `client_id` argu","public_affected_ranges":["< 4.0.0"]}],"null_published_at":"2026-11-03T10:03:31.382Z","source_updated_at":"2026-10-30T22:58:18.000Z","source_disclosed_at":"2026-10-30T22:58:16.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009128","kind":"vulnerability","title":"OAuthLib: Token grants can use attacker-supplied client_id for authorization after authenticating a different client","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7984-qgvg-3j9c","CVE-2026-118669"],"plain_summary":"GitHub lists this reviewed advisory for oauthlib. 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-c16c4e29e0bcaf3f6d38c74a8f2b8b00"],"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-c16c4e29e0bcaf3f6d38c74a8f2b8b00","url":"https://github.com/advisories/GHSA-7984-qgvg-3j9c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7984-qgvg-3j9c","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-c16c4e29e0bcaf3f6d38c74a8f2b8b00"],"technology":"oauthlib","known_exclusions":[],"conditions_summary":"## Summary\n\nOAuthlib's token grant handlers can authenticate one client while authorizing the grant type and requested scopes using a different, attacker-supplied `client_id` from the request body.\n\nIn affected token grant flows, `authenticate_client(request)` sets `request.client` to the authenticated client object, but OAuthlib does not require `request.client_id` to match `request.client.client_id`. If the request body already contains `client_id=...`, OAuthlib keeps that value and passes it to `validate_grant_type()` and `validate_scopes()`.\n\nAs a result, an authenticated low-privilege confidential client can authenticate as itself, submit another client's `client_id` in the token request body, and cause grant and scope validation to run under that other client identity.\n\n## Affected Surface\n\nThe affected public surface is the OAuth2 token endpoint handling for:\n\n- `client_credentials`\n- `password` / Resource Owner Password Credentials\n\nThe issue is relevant to OAuthlib provider deployments where:\n\n- the attacker has credentials for one valid lower-privilege confidential client;\n- another client has broader grants or scopes;\n- the application validator uses the `client_id` argu","public_affected_ranges":["< 4.0.0"]}],"null_published_at":"2026-10-31T22:13:31.285Z","source_updated_at":"2026-10-30T22:58:18.000Z","source_disclosed_at":"2026-10-30T22:58:16.000Z","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":"2026-10-31T21:55:49.621Z"}],"next_cursor":null,"snapshot_revision":"42594"}