FKIE_CVE-2026-33042
Vulnerability from fkie_nvd - Published: 2026-03-18 22:16 - Updated: 2026-06-17 10:36
Severity
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.29 and 8.6.49, a user can sign up without providing credentials by sending an empty `authData` object, bypassing the username and password requirement. This allows the creation of authenticated sessions without proper credentials, even when anonymous users are disabled. The fix in 9.6.0-alpha.29 and 8.6.49 ensures that empty or non-actionable `authData` is treated the same as absent `authData` for the purpose of credential validation on new user creation. Username and password are now required when no valid auth provider data is present. As a workaround, use a Cloud Code `beforeSave` trigger on the `_User` class to reject signups where `authData` is empty and no username/password is provided.
References
Impacted products
{
"affected": [
{
"affectedData": [
{
"product": "parse-server",
"vendor": "parse-community",
"versions": [
{
"status": "affected",
"version": "\u003e= 9.0.0, \u003c 9.6.0-alpha.29"
},
{
"status": "affected",
"version": "\u003c 8.6.49"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
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"negate": false,
"operator": "OR"
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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 9.6.0-alpha.29 and 8.6.49, a user can sign up without providing credentials by sending an empty `authData` object, bypassing the username and password requirement. This allows the creation of authenticated sessions without proper credentials, even when anonymous users are disabled. The fix in 9.6.0-alpha.29 and 8.6.49 ensures that empty or non-actionable `authData` is treated the same as absent `authData` for the purpose of credential validation on new user creation. Username and password are now required when no valid auth provider data is present. As a workaround, use a Cloud Code `beforeSave` trigger on the `_User` class to reject signups where `authData` is empty and no username/password is provided."
},
{
"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 9.6.0-alpha.29 y 8.6.49, un usuario pod\u00eda registrarse sin proporcionar credenciales enviando un objeto \u0027authData\u0027 vac\u00edo, eludiendo el requisito de nombre de usuario y contrase\u00f1a. Esto permite la creaci\u00f3n de sesiones autenticadas sin credenciales adecuadas, incluso cuando los usuarios an\u00f3nimos est\u00e1n deshabilitados. La correcci\u00f3n en 9.6.0-alpha.29 y 8.6.49 asegura que \u0027authData\u0027 vac\u00edo o no procesable sea tratado igual que un \u0027authData\u0027 ausente a efectos de la validaci\u00f3n de credenciales en la creaci\u00f3n de nuevos usuarios. Ahora se requieren nombre de usuario y contrase\u00f1a cuando no hay datos de proveedor de autenticaci\u00f3n v\u00e1lidos presentes. Como soluci\u00f3n alternativa, utilice un disparador \u0027beforeSave\u0027 de Cloud Code en la clase \u0027_User\u0027 para rechazar registros donde \u0027authData\u0027 est\u00e9 vac\u00edo y no se proporcione nombre de usuario/contrase\u00f1a."
}
],
"id": "CVE-2026-33042",
"lastModified": "2026-06-17T10:36:51.393",
"metrics": {
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{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
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"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.9,
"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": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
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"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
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"role": "CISA Coordinator",
"timestamp": "2026-03-20T17:10:06.283224Z",
"version": "2.0.3"
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]
},
"published": "2026-03-18T22:16:26.120",
"references": [
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"tags": [
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"url": "https://github.com/parse-community/parse-server/pull/10219"
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{
"source": "security-advisories@github.com",
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{
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"type": "Secondary"
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"source": "nvd@nist.gov",
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}
]
}
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| Author | Source | Type | Date | Other |
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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