CVE-2026-30229

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.6 and 9.5.0-alpha.4, the readOnlyMasterKey can call POST /loginAs to obtain a valid session token for any user. This allows a read-only credential to impersonate arbitrary users with full read and write access to their data. Any Parse Server deployment that uses readOnlyMasterKey is affected. This issue has been patched in versions 8.6.6 and 9.5.0-alpha.4.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/parse-community/parse-server/releases/tag/8.6.6	Release Notes Product
https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.4	Release Notes Product
https://github.com/parse-community/parse-server/security/advisories/GHSA-79wj-8rqv-jvp5	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:parseplatform:parse-server::::::node.js::*
	cpe:2.3:a:parseplatform:parse-server::::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha1::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha2::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha3::::node.js::*

History

No history.

Information

Published : 2026-03-06 21:16

Updated : 2026-03-11 12:37

NVD link : CVE-2026-30229

Mitre link : CVE-2026-30229

CVE.ORG link : CVE-2026-30229

JSON object : View

Products Affected

parseplatform

parse-server

CWE

CWE-863

Incorrect Authorization

{"id": "CVE-2026-30229", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.5, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-03-06T21:16:16.920", "references": [{"url": "https://github.com/parse-community/parse-server/releases/tag/8.6.6", "tags": ["Release Notes", "Product"], "source": "security-advisories@github.com"}, {"url": "https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.4", "tags": ["Release Notes", "Product"], "source": "security-advisories@github.com"}, {"url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-79wj-8rqv-jvp5", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "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 8.6.6 and 9.5.0-alpha.4, the readOnlyMasterKey can call POST /loginAs to obtain a valid session token for any user. This allows a read-only credential to impersonate arbitrary users with full read and write access to their data. Any Parse Server deployment that uses readOnlyMasterKey is affected. This issue has been patched in versions 8.6.6 and 9.5.0-alpha.4."}, {"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 8.6.6 y 9.5.0-alpha.4, la readOnlyMasterKey puede llamar a POST /loginAs para obtener un token de sesi\u00f3n v\u00e1lido para cualquier usuario. Esto permite a una credencial de solo lectura suplantar a usuarios arbitrarios con acceso completo de lectura y escritura a sus datos. Cualquier despliegue de Parse Server que utilice readOnlyMasterKey se ve afectado. Este problema ha sido parcheado en las versiones 8.6.6 y 9.5.0-alpha.4."}], "lastModified": "2026-03-11T12:37:47.227", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "7C6BD5DA-ABE7-4B84-8056-BEF926C67E69", "versionEndExcluding": "8.6.6"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "F228114F-93AA-4DCC-80D4-39D31F671F0B", "versionEndIncluding": "9.4.1", "versionStartIncluding": "9.0.0"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha1:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "3E9F95CF-EEE1-42FC-904E-321F05E3DE4E"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha2:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "5C02D6F0-5A3A-45F5-8A74-F75A8CCAE7DE"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha3:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "103C9745-031B-4822-A19C-A61375FBB1AD"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}