Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-03-13 12:28

Modified

2026-03-13 12:55

Summary

Parse Server has user enumeration via email verification endpoint

Details

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.34 and 9.6.0, the email verification endpoint (/verificationEmailRequest) returns distinct error responses depending on whether an email address belongs to an existing user, is already verified, or does not exist. An attacker can send requests with different email addresses and observe the error codes to determine which email addresses are registered in the application. This is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (verifyUserEmails: true). This vulnerability is fixed in 8.6.34 and 9.6.0.

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "parse",
        "purl": "pkg:bitnami/parse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.6.34"
            },
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.6.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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",
          "type": "CVSS_V4"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-31901"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.34 and 9.6.0, the email verification endpoint (/verificationEmailRequest) returns distinct error responses depending on whether an email address belongs to an existing user, is already verified, or does not exist. An attacker can send requests with different email addresses and observe the error codes to determine which email addresses are registered in the application. This is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (verifyUserEmails: true). This vulnerability is fixed in 8.6.34 and 9.6.0.",
  "id": "BIT-parse-2026-31901",
  "modified": "2026-03-13T12:55:29.610Z",
  "published": "2026-03-13T12:28:52.748Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/releases/tag/8.6.34"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-w54v-hf9p-8856"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31901"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Parse Server has user enumeration via email verification endpoint"
}

CVE-2026-31901 (GCVE-0-2026-31901)

Vulnerability from cvelistv5 – Published: 2026-03-11 19:18 – Updated: 2026-03-12 20:01

Title

Parse Server has user enumeration via email verification endpoint

Summary

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.34 and 9.6.0-alpha.8, the email verification endpoint (/verificationEmailRequest) returns distinct error responses depending on whether an email address belongs to an existing user, is already verified, or does not exist. An attacker can send requests with different email addresses and observe the error codes to determine which email addresses are registered in the application. This is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (verifyUserEmails: true). This vulnerability is fixed in 8.6.34 and 9.6.0-alpha.8.

Severity ?

6.3 (Medium)


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

CWE

CWE-204 - Observable Response Discrepancy

Assigner

GitHub_M

References

URL

Tags

	https://github.com/parse-community/parse-server/s…	x_refsource_CONFIRM
	https://github.com/parse-community/parse-server/r…	x_refsource_MISC
	https://github.com/parse-community/parse-server/r…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	parse-community	parse-server	Affected: >= 9.0.0 < 9.6.0-alpha.8 Affected: < 8.6.34

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-31901",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-12T20:01:34.497566Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-12T20:01:40.698Z",
          "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": "\u003e= 9.0.0 \u003c 9.6.0-alpha.8"
            },
            {
              "status": "affected",
              "version": "\u003c 8.6.34"
            }
          ]
        }
      ],
      "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 8.6.34 and 9.6.0-alpha.8, the email verification endpoint (/verificationEmailRequest) returns distinct error responses depending on whether an email address belongs to an existing user, is already verified, or does not exist. An attacker can send requests with different email addresses and observe the error codes to determine which email addresses are registered in the application. This is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (verifyUserEmails: true). This vulnerability is fixed in 8.6.34 and 9.6.0-alpha.8."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-204",
              "description": "CWE-204: Observable Response Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-11T19:18:06.578Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/parse-community/parse-server/security/advisories/GHSA-w54v-hf9p-8856",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-w54v-hf9p-8856"
        },
        {
          "name": "https://github.com/parse-community/parse-server/releases/tag/8.6.34",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/releases/tag/8.6.34"
        },
        {
          "name": "https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.8"
        }
      ],
      "source": {
        "advisory": "GHSA-w54v-hf9p-8856",
        "discovery": "UNKNOWN"
      },
      "title": "Parse Server has user enumeration via email verification endpoint"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-31901",
    "datePublished": "2026-03-11T19:18:06.578Z",
    "dateReserved": "2026-03-09T21:59:02.689Z",
    "dateUpdated": "2026-03-12T20:01:40.698Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2026-31901 (GCVE-0-2026-31901)

Tags

Sightings

Nomenclature