{"metadata": {"vulnerability": "CVE-2026-121809", "count": 8, "kinds": {"milestone": 2, "sighting": 1, "kev": 0, "other": 5}, "linked_omitted": 0}, "data": [{"timestamp": "2026-11-13T11:19:13.834Z", "date_only": false, "value": "2026-11-13T11:19:13.834Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-121809", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-13T11:19:46Z", "date_only": false, "value": "2026-11-13T11:19:46.000Z", "kind": "other", "label": "Date Assigned", "source": "cvelistv5 / EEF", "record": "CVE-2026-121809", "field": "containers.cna.dateAssigned"}, {"timestamp": "2026-11-13T16:18:37.954Z", "date_only": false, "value": "2026-11-13T16:18:37.954Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-121809", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-13T16:18:37.954Z", "date_only": false, "value": "2026-11-13T16:18:37.954Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / EEF", "record": "CVE-2026-121809", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-11-13T16:23:29.319Z", "date_only": false, "value": "2026-11-13T16:23:29.319743Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117610054211814824", "record": "CVE-2026-121809", "field": "creation_timestamp", "uuid": "a48a4b3a-68b3-493e-adca-67e1892dd452", "content": "CVE-2026-121809 CPU exhaustion via a truncated gRPC message on streaming RPCs in elixir-grpc grpc_server Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in elixir-grpc grpc_server and grpc allows unauthenticated attackers to occupy a BEAM scheduler indefinitely via a client-streaming or bidirectional-streaming request whose body ends inside a gRPC message.\nGRPC.Server.Adapters.Cowboy.read_stream/1 (grpc_server/lib/grpc/server/adapters/cowboy.ex, and the Cowboy adapter in grpc before the package split) asks for more data whenever the buffer does not hold a complete message. Once the request body has ended, every further read returns an empty chunk, so the buffer never changes and the function retries without end. A single 5-byte length prefix sent with END_STREAM keeps one scheduler busy for as long as the connection stays open, and repeated requests exhaust all schedulers.\nThis issue affects grpc_server: from 1.0.0 before 1.1.0; grpc: from 0.3.1 before 1.0.0.\nhttps://www.cve.org/CVERecord?id=CVE-2026-121809https://github.com/elixir-grpc/grpc/security/advisories/GHSA-c2h9-f9cc-27xhhttps://cna.erlef.org/cves/CVE-2026-121809.htmlhttps://osv.dev/vulnerability/EEF-CVE-2026-121809https://github.com/elixir-grpc/grpc/commit/0332faae5f5e132314794dbfdae5edecbccea292https://github.com/elixir-grpc/grpc/commit/38955f1392cbf08eef231a347348445410455c85https://github.com/elixir-grpc/grpc/commit/6d8a09ad919e208fb600538ac8b19bd733a04310#elixir-grpc #grpc_server #grpc#CVE_2026_121809#bot", "url": "https://infosec.exchange/users/cve/statuses/117610054211814824"}, {"timestamp": "2026-11-13T17:55:12.226Z", "date_only": false, "value": "2026-11-13T17:55:12.226355Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-121809", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-11-13T19:32:40.114Z", "date_only": false, "value": "2026-11-13T19:32:40.114Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-121809", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-11-13T19:32:40.114Z", "date_only": false, "value": "2026-11-13T19:32:40.114Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-121809", "field": "containers.adp.0.providerMetadata.dateUpdated"}], "metrics": {"as_of": "2026-11-14T05:01:57.227Z", "anchors": {"origin": {"timestamp": "2026-11-13T16:18:37.954Z", "date_only": false, "value": "2026-11-13T16:18:37.954Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-121809", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-11-13T16:18:37.954Z", "date_only": false, "value": "2026-11-13T16:18:37.954Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-121809", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 45799.273666, "hours": 12.722020462777778, "days": 0.5300841859490741, "min_seconds": 45799.273666, "max_seconds": 45799.273666, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-11-13T16:18:37.954Z", "date_only": false, "value": "2026-11-13T16:18:37.954Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-121809", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-11-14T05:01:57.227Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}