{"items":[{"id":"NVI-00017483","kind":"vulnerability","title":"Lemur has an authorization bypass in StrictRolePermission / AuthorityCreatorPermission","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qcqw-jwxc-2hqg","CVE-2026-48508"],"plain_summary":"GitHub lists this reviewed advisory for lemur. 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-08b77e97ff92549ace714b40e99e4e25"],"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":"2026-06-25T18:48:39.000Z","value":"8.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-08b77e97ff92549ace714b40e99e4e25"}],"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-08b77e97ff92549ace714b40e99e4e25","url":"https://github.com/advisories/GHSA-qcqw-jwxc-2hqg","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qcqw-jwxc-2hqg","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T19:05:53.922Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-08b77e97ff92549ace714b40e99e4e25"],"technology":"lemur","known_exclusions":[],"conditions_summary":"## Summary\n\n`StrictRolePermission` and `AuthorityCreatorPermission` in `lemur/auth/permissions.py` call `flask_principal.Permission.__init__()` with zero `Need`s when their config flags are unset. Both flags defaulted to `False` in code prior to the fix, so this was the state of any Lemur install that hadn't explicitly opted in.\n\nFlask-Principal's `Permission.allows()` returns `True` whenever `self.needs` is empty. The `.can()` gate therefore passes for every authenticated identity, including the lowest-privilege role Lemur ships (`read-only`).\n\nA user holding only `read-only` can create root Certificate Authorities, create and edit notifications (an SSRF sink), create domain entries, and upload arbitrary certificates. These classes are the sole authorization check on those endpoints.\n\n## Root Cause\n\n```python\n# lemur/auth/permissions.py\nclass AuthorityCreatorPermission(Permission):\n    def __init__(self):\n        requires_admin = current_app.config.get(\"ADMIN_ONLY_AUTHORITY_CREATION\", False)\n        if requires_admin:\n            super().__init__(RoleNeed(\"admin\"))\n        else:\n            super().__init__()              # empty Need set\n\nclass StrictRolePermission(Permission):\n ","public_affected_ranges":["<= 1.9.0"]}],"null_published_at":"2026-11-05T19:10:21.395Z","source_updated_at":"2026-06-25T18:48:39.000Z","source_disclosed_at":"2026-06-25T18:48:39.000Z","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":"2026-11-05T19:05:53.922Z"}],"next_cursor":null,"snapshot_revision":"42594"}