CVE-2026-63116
CVE-2026-63116 · deepstream: PATCH_MULTI action bypasses Valve permission system allowing unauthorized record writes
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.8 · High · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
deepstream.io
- Versions
- >= 10.1.0, < 10.1.1: Affected
No fix published
@deepstream/server npm
- Versions
- 10.1.0
- Affected ranges
- SEMVER: ≥ 10.1.0, < 10.1.1
Update to 10.1.1