{"items":[{"id":"NVI-00012091","kind":"vulnerability","title":"Oauthlib : Unsafe JSONP callback injection in RevocationEndpoint allows arbitrary JavaScript response generation","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-hj66-6f7g-4r5v","CVE-2026-49264"],"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-037828f93e1bdd77d1f0105662ea71f6"],"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":"2026-10-13T15:49:09.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-a42ed06fbcb27c30e01eee5366f721bb"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.234%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.14453. Missing scores are unknown.","source_id":"sr-037828f93e1bdd77d1f0105662ea71f6"}],"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-a42ed06fbcb27c30e01eee5366f721bb","url":"https://github.com/advisories/GHSA-hj66-6f7g-4r5v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-hj66-6f7g-4r5v","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:22.124Z"},{"id":"sr-037828f93e1bdd77d1f0105662ea71f6","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-2026-49264","publisher":"FIRST EPSS","observed_at":"2026-11-06T00:24:57.660Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a42ed06fbcb27c30e01eee5366f721bb"],"technology":"oauthlib","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen `enable_jsonp=True`, oauthlib's `RevocationEndpoint` reflects the user-supplied `callback` parameter directly into JavaScript response bodies on both success and error paths without validating that it is a legal JSONP callback name. This allows arbitrary JavaScript response generation instead of a restricted function call, making the documented JSONP revocation feature unsafe for browser-based JSONP consumption when attackers can influence `callback`.\n\n### Details\n\nThe issue is in `oauthlib/oauth2/rfc6749/endpoints/revocation.py`.\n\nWhen `enable_jsonp=True` is passed to the `RevocationEndpoint` constructor, two code paths wrap the response body using the user-supplied `request.callback` parameter:\n\n```python\n# Error response path (line 72-73):\nif self.enable_jsonp and request.callback:\n    response_body = '{}({});'.format(request.callback, response_body)\n\n# Success response path (line 81-82):\nif self.enable_jsonp and request.callback:\n    response_body = request.callback + '();'\n```\n\nThe `request.callback` value comes from HTTP request parameters, either the query string or POST body, via the `Request` class in `oauthlib/common.py` (lines 394-395), which merges que","public_affected_ranges":[">= 0.6.1, <= 3.3.1"]}],"null_published_at":"2026-11-07T07:07:42.543Z","source_updated_at":"2026-10-13T15:49:09.000Z","source_disclosed_at":"2026-09-29T17:53:41.000Z","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":"2026-10-31T23:14:22.124Z"},{"id":"NVI-00012091","kind":"vulnerability","title":"Oauthlib : Unsafe JSONP callback injection in RevocationEndpoint allows arbitrary JavaScript response generation","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-hj66-6f7g-4r5v","CVE-2026-49264"],"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-a42ed06fbcb27c30e01eee5366f721bb"],"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":"2026-10-13T15:49:09.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-a42ed06fbcb27c30e01eee5366f721bb"}],"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-a42ed06fbcb27c30e01eee5366f721bb","url":"https://github.com/advisories/GHSA-hj66-6f7g-4r5v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-hj66-6f7g-4r5v","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:22.124Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a42ed06fbcb27c30e01eee5366f721bb"],"technology":"oauthlib","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen `enable_jsonp=True`, oauthlib's `RevocationEndpoint` reflects the user-supplied `callback` parameter directly into JavaScript response bodies on both success and error paths without validating that it is a legal JSONP callback name. This allows arbitrary JavaScript response generation instead of a restricted function call, making the documented JSONP revocation feature unsafe for browser-based JSONP consumption when attackers can influence `callback`.\n\n### Details\n\nThe issue is in `oauthlib/oauth2/rfc6749/endpoints/revocation.py`.\n\nWhen `enable_jsonp=True` is passed to the `RevocationEndpoint` constructor, two code paths wrap the response body using the user-supplied `request.callback` parameter:\n\n```python\n# Error response path (line 72-73):\nif self.enable_jsonp and request.callback:\n    response_body = '{}({});'.format(request.callback, response_body)\n\n# Success response path (line 81-82):\nif self.enable_jsonp and request.callback:\n    response_body = request.callback + '();'\n```\n\nThe `request.callback` value comes from HTTP request parameters, either the query string or POST body, via the `Request` class in `oauthlib/common.py` (lines 394-395), which merges que","public_affected_ranges":[">= 0.6.1, <= 3.3.1"]}],"null_published_at":"2026-11-01T01:03:56.630Z","source_updated_at":"2026-10-13T15:49:09.000Z","source_disclosed_at":"2026-09-29T17:53:41.000Z","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":"2026-10-31T23:14:22.124Z"}],"next_cursor":null,"snapshot_revision":"42594"}