Vulnerability-Lookup

FKIE_CVE-2026-34595

Vulnerability from fkie_nvd - Published: 2026-03-31 16:16 - Updated: 2026-07-24 20:10

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.70 and 9.7.0-alpha.18, an authenticated user with find class-level permission can bypass the protectedFields class-level permission setting on LiveQuery subscriptions. By sending a subscription with a $or, $and, or $nor operator value as a plain object with numeric keys and a length property (an "array-like" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. This issue has been patched in versions 8.6.70 and 9.7.0-alpha.18.

References

URL	Tags
security-advisories@github.com	https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98	Patch
security-advisories@github.com	https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2	Patch
security-advisories@github.com	https://github.com/parse-community/parse-server/pull/10350	Issue Tracking, Patch
security-advisories@github.com	https://github.com/parse-community/parse-server/pull/10351	Issue Tracking, Patch
security-advisories@github.com	https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2	Patch, Vendor Advisory

Impacted products

Vendor	Product	Version
parseplatform	parse-server	*
parseplatform	parse-server	*
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0
parseplatform	parse-server	9.7.0

JSON

To clipboard

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      "affectedData": [
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          "product": "parse-server",
          "vendor": "parse-community",
          "versions": [
            {
              "status": "affected",
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              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.70 and 9.7.0-alpha.18, an authenticated user with find class-level permission can bypass the protectedFields class-level permission setting on LiveQuery subscriptions. By sending a subscription with a $or, $and, or $nor operator value as a plain object with numeric keys and a length property (an \"array-like\" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. This issue has been patched in versions 8.6.70 and 9.7.0-alpha.18."
    },
    {
      "lang": "es",
      "value": "Parse Server es un backend de c\u00f3digo abierto que puede ser desplegado en cualquier infraestructura que pueda ejecutar Node.js. Antes de las versiones 8.6.70 y 9.7.0-alpha.18, un usuario autenticado con permiso de nivel de clase \u0027find\u0027 puede eludir la configuraci\u00f3n de permiso de nivel de clase \u0027protectedFields\u0027 en las suscripciones de LiveQuery. Al enviar una suscripci\u00f3n con un valor de operador $or, $and o $nor como un objeto simple con claves num\u00e9ricas y una propiedad \u0027length\u0027 (un objeto \u0027similar a un array\u0027) en lugar de un array, la protecci\u00f3n del campo protegido es eludida. El disparo del evento de suscripci\u00f3n act\u00faa como un or\u00e1culo binario, permitiendo al atacante inferir si un campo protegido coincide con un valor de prueba dado. Este problema ha sido parcheado en las versiones 8.6.70 y 9.7.0-alpha.18."
    }
  ],
  "id": "CVE-2026-34595",
  "lastModified": "2026-07-24T20:10:00.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-03-31T17:22:23.778081Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-03-31T16:16:34.087",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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      ],
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    },
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      "source": "security-advisories@github.com",
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        "Patch"
      ],
      "url": "https://github.com/parse-community/parse-server/pull/10350"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/parse-community/parse-server/pull/10351"
    },
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      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

CVE-2026-34595 (GCVE-0-2026-34595)

Vulnerability from cvelistv5 – Published: 2026-03-31 15:10 – Updated: 2026-03-31 17:22

Title

Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value

Summary

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-31 17:22 UTC

CWE

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

GitHub_M mitre root

References

5 references

URL	Tags
https://github.com/parse-community/parse-server/s…	x_refsource_CONFIRM
https://github.com/parse-community/parse-server/p…	x_refsource_MISC
https://github.com/parse-community/parse-server/p…	x_refsource_MISC
https://github.com/parse-community/parse-server/c…	x_refsource_MISC
https://github.com/parse-community/parse-server/c…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
parse-community	parse-server	Affected: < 8.6.70 Affected: >= 9.0.0, < 9.7.0-alpha.18

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34595",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-31T17:22:23.778081Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-31T17:22:36.470Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "parse-server",
          "vendor": "parse-community",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 8.6.70"
            },
            {
              "status": "affected",
              "version": "\u003e= 9.0.0, \u003c 9.7.0-alpha.18"
            }
          ]
        }
      ],
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        {
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
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            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "CWE-843: Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
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          "url": "https://github.com/parse-community/parse-server/pull/10350"
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/pull/10351"
        },
        {
          "name": "https://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98",
          "tags": [
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        },
        {
          "name": "https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2"
        }
      ],
      "source": {
        "advisory": "GHSA-mmg8-87c5-jrc2",
        "discovery": "UNKNOWN"
      },
      "title": "Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-34595",
    "datePublished": "2026-03-31T15:10:06.872Z",
    "dateReserved": "2026-03-30T17:15:52.499Z",
    "dateUpdated": "2026-03-31T17:22:36.470Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

FKIE_CVE-2026-34595

CVE-2026-34595 (GCVE-0-2026-34595)

Tags

Sightings

Nomenclature