{"items":[{"id":"NVI-00014023","kind":"vulnerability","title":"Open WebUI: Any authenticated user can suppress calendar alerts instance-wide via a non-numeric alert value","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-v39v-59xw-j98g","CVE-2026-87012"],"plain_summary":"GitHub lists this reviewed advisory for open-webui. 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-33022bc78324d8ad4745ae1b81749983"],"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":"2026-09-10T22:42:48.000Z","value":"4.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-33022bc78324d8ad4745ae1b81749983"}],"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-33022bc78324d8ad4745ae1b81749983","url":"https://github.com/advisories/GHSA-v39v-59xw-j98g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-v39v-59xw-j98g","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T22:54:05.264Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-33022bc78324d8ad4745ae1b81749983"],"technology":"open-webui","known_exclusions":[],"conditions_summary":"# Any authenticated user can suppress calendar alerts instance-wide via a non-numeric alert value\n\n## Summary\n\nCalendar events carry a free-form `meta` object that is stored exactly as submitted, with no validation of the values inside it. The scheduler reads the per-event alert offset out of that object in a single pass that covers every user's upcoming events, and compares it numerically without checking that it is a number. Any verified user could store a text value there, which made the comparison raise and abort the whole pass, so no calendar reminder fired for anyone on the instance while that event stayed inside the lookahead window.\n\n## Preconditions\n\n- Calendar is enabled (`ENABLE_CALENDAR` / `calendar.enable`, default `True`).\n- The attacker is a verified user (role `user` or `admin`) holding the `calendar` feature permission, which is granted to all users by default (`USER_PERMISSIONS_FEATURES_CALENDAR`, default `True`).\n- The event's start time falls inside the scheduler's one hour lookahead window, so the shared alert pass selects it.\n\nNo admin access, no shared calendar, no recurrence rule and no open registration are required, an invited account is enough. Deployment","public_affected_ranges":[">= 0.9.0, < 0.11.1"]}],"null_published_at":"2026-11-02T10:00:37.197Z","source_updated_at":"2026-09-10T22:42:48.000Z","source_disclosed_at":"2026-09-10T22:42:48.000Z","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":"2026-11-01T22:54:05.264Z"}],"next_cursor":null,"snapshot_revision":"44495"}