{"items":[{"id":"NVI-00017630","kind":"vulnerability","title":"Nezha Monitoring: RoleMember can fire other users' cron tasks via AlertRule.FailTriggerTasks (no ownership check)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rxf6-wjh4-jfj6","CVE-2026-47120"],"plain_summary":"GitHub lists this reviewed advisory for github.com/nezhahq/nezha. 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-331d7a8a4537a922e7135e948cb8140f"],"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":"2026-06-26T21:28:33.000Z","value":"5.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-331d7a8a4537a922e7135e948cb8140f"}],"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-331d7a8a4537a922e7135e948cb8140f","url":"https://github.com/advisories/GHSA-rxf6-wjh4-jfj6","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-rxf6-wjh4-jfj6","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T19:05:04.022Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-331d7a8a4537a922e7135e948cb8140f"],"technology":"github.com/nezhahq/nezha","known_exclusions":[],"conditions_summary":"## Summary\n\n`createAlertRule` and `createService` (and their `update*` siblings) accept `FailTriggerTasks []uint64` and `RecoverTriggerTasks []uint64` — IDs of cron tasks to fire when the alert/service trips. The validation function only validates the alert's `Rules.Ignore` server map; it never checks that the cron task IDs in `FailTriggerTasks` / `RecoverTriggerTasks` belong to the caller.\n\nWhen the alert fires, `singleton.CronShared.SendTriggerTasks(taskIDs, triggerServer)` (`service/singleton/crontask.go:113-127`) looks up those task IDs in the global cron registry and executes them via `CronTrigger`. For non-`AlertTrigger` cover modes, `CronTrigger` fans the command out to every server in `ServerShared.Range` with no ownership check.\n\nNet effect: a `RoleMember` can attach their alert rule (or service monitor) to **another user's** cron task ID — including admin's crons. When the alert trips, the admin's cron command runs across every server (or every server in its allow/deny list).\n\nThis is the same fanout/auth-bypass class as `NEZHA-002` (cron creation), but reachable by a different code path: even if `/cron` writes are restricted to admin, this `/alert-rule` and `/service` wr","public_affected_ranges":[">= 1.4.0, < 1.14.15-0.20260517022419-d7526351cf97"]}],"null_published_at":"2026-11-05T19:10:21.428Z","source_updated_at":"2026-06-26T21:28:33.000Z","source_disclosed_at":"2026-05-23T00:08:45.000Z","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":"2026-11-05T19:05:04.022Z"}],"next_cursor":null,"snapshot_revision":"42594"}