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    4 vulnerabilities found for deepstream.io by deepstreamIO

    CVE-2026-63116 (GCVE-0-2026-63116)

    Vulnerability from nvd – Published: 2026-09-21 16:59 – Updated: 2026-09-21 17:59
    VLAI
    Title
    deepstream: PATCH_MULTI action bypasses Valve permission system allowing unauthorized record writes
    Summary
    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.
    Severity
    8.8 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-21 17:59 UTC
    CWE
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7595 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    deepstreamIO deepstream.io Affected: >= 10.1.0, < 10.1.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-49252 (GCVE-0-2026-49252)

    Vulnerability from nvd – Published: 2026-06-18 20:01 – Updated: 2026-06-22 15:11
    VLAI
    Title
    deepstream is vulnerable to prototype pollution
    Summary
    deepstream is a server that allows clients and backend services to sync data, send messages and make rpcs at scale. Versions prior to 10.0.5 are vulnerable to Prototype Pollution. Exploitation can lead to potential privilege escalation from any authenticated user with write permission to any record. This issue has been fixed in version 10.0.5.
    Severity
    9.9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-22 15:10 UTC
    CWE
    • CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7595 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    deepstreamIO deepstream.io Affected: < 10.0.5
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-63116 (GCVE-0-2026-63116)

    Vulnerability from cvelistv5 – Published: 2026-09-21 16:59 – Updated: 2026-09-21 17:59
    VLAI
    Title
    deepstream: PATCH_MULTI action bypasses Valve permission system allowing unauthorized record writes
    Summary
    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.
    Severity
    8.8 (High)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-21 17:59 UTC
    CWE
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7595 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    deepstreamIO deepstream.io Affected: >= 10.1.0, < 10.1.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-49252 (GCVE-0-2026-49252)

    Vulnerability from cvelistv5 – Published: 2026-06-18 20:01 – Updated: 2026-06-22 15:11
    VLAI
    Title
    deepstream is vulnerable to prototype pollution
    Summary
    deepstream is a server that allows clients and backend services to sync data, send messages and make rpcs at scale. Versions prior to 10.0.5 are vulnerable to Prototype Pollution. Exploitation can lead to potential privilege escalation from any authenticated user with write permission to any record. This issue has been fixed in version 10.0.5.
    Severity
    9.9 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-22 15:10 UTC
    CWE
    • CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7595 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    deepstreamIO deepstream.io Affected: < 10.0.5
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-49252",
    "datePublished": "2026-06-18T20:01:31.307Z",
    "dateReserved": "2026-05-28T14:33:01.179Z",
    "dateUpdated": "2026-06-22T15:11:26.795Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}