{"id":"CVE-2026-63116","revision":"d40b7ef2a73444ad912ba03b626df0bf","records":[{"revision":"d40b7ef2a73444ad912ba03b626df0bf","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-63116","aliases":[],"title":"deepstream: PATCH_MULTI action bypasses Valve permission system allowing unauthorized record writes","description":"deepstream is a server that allows clients and backend services to sync data, send messages and make rpcs at scale. From 10.1.0 until 10.1.1, src/services/permission/valve/rules-map.ts omits RECORD_ACTION.PATCH_MULTI from RULES_MAP. When an authenticated user sends a PATCH_MULTI record operation while permission.type is config, getRulesForMessage returns a null rule specification and ConfigPermission.canPerformAction treats the missing specification as an unconditional allow instead of applying RULE_TYPES.WRITE. Any authenticated user can therefore modify arbitrary protected records, corrupt application state, or cause service disruption; deployments using the default permission type none already allow all operations and are not additionally affected. This issue is fixed in version 10.1.1.","state":0,"publishedAt":"2026-09-21T16:59:22.958+00:00","modifiedAt":"2026-09-21T17:59:34.586+00:00","affected":[{"ecosystem":"Vendor product","name":"deepstream.io","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"deepstreamIO\",\n                    \"product\": \"deepstream.io\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 10.1.0, < 10.1.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/deepstreamIO/deepstream.io/security/advisories/GHSA-89vx-jh4q-vg3w","https://github.com/deepstreamIO/deepstream.io/commit/1c2adde6581c53ef47e204364bc740bc3c2e2e2a","https://github.com/deepstreamIO/deepstream.io/releases/tag/v10.1.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63116","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-63116","identifiers":["CVE-2026-63116"]},"retained":false,"historicalAffected":[]}],"coverage":[]}