CVE-2026-30229 (GCVE-0-2026-30229)

Vulnerability from cvelistv5 – Published: 2026-03-06 20:26 – Updated: 2026-03-06 20:26
VLAI?
Title
Parse Server: Endpoint `/loginAs` allows `readOnlyMasterKey` to gain full read and write access as any user
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.6 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.
Severity ?
8.5 (High)
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
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
parse-community parse-server Affected: < 8.6.6
Affected: < 9.5.0-alpha.4
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        }
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            "privilegesRequired": "HIGH",
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            "userInteraction": "NONE",
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      "problemTypes": [
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          "descriptions": [
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      "providerMetadata": {
        "dateUpdated": "2026-03-06T20:26:53.787Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      },
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        }
      ],
      "source": {
        "advisory": "GHSA-79wj-8rqv-jvp5",
        "discovery": "UNKNOWN"
      },
      "title": "Parse Server: Endpoint `/loginAs` allows `readOnlyMasterKey` to gain full read and write access as any user"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-30229",
    "datePublished": "2026-03-06T20:26:53.787Z",
    "dateReserved": "2026-03-04T17:23:59.797Z",
    "dateUpdated": "2026-03-06T20:26:53.787Z",
    "state": "PUBLISHED"
  },
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  }
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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