CVE-2026-30965 (GCVE-0-2026-30965)

Vulnerability from cvelistv5 – Published: 2026-03-10 20:43 – Updated: 2026-03-11 14:27
VLAI?
Title
Parse Server session token exfiltration via `redirectClassNameForKey` query parameter
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.8 and 8.6.21, a vulnerability in Parse Server's query handling allows an authenticated or unauthenticated attacker to exfiltrate session tokens of other users by exploiting the redirectClassNameForKey query parameter. Exfiltrated session tokens can be used to take over user accounts. The vulnerability requires the attacker to be able to create or update an object with a new relation field, which depends on the Class-Level Permissions of at least one class. This vulnerability is fixed in 9.5.2-alpha.8 and 8.6.21.
Severity ?
9.9 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version
parse-community parse-server Affected: >= 9.0.0 < 9.5.2-alpha.8
Affected: < 8.6.21
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-30965",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-11T14:27:33.466755Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-11T14:27:48.323Z",
          "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 9.5.2-alpha.8"
            },
            {
              "status": "affected",
              "version": "\u003c 8.6.21"
            }
          ]
        }
      ],
      "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 9.5.2-alpha.8 and 8.6.21, a vulnerability in Parse Server\u0027s query handling allows an authenticated or unauthenticated attacker to exfiltrate session tokens of other users by exploiting the redirectClassNameForKey query parameter. Exfiltrated session tokens can be used to take over user accounts. The vulnerability requires the attacker to be able to create or update an object with a new relation field, which depends on the Class-Level Permissions of at least one class. This vulnerability is fixed in 9.5.2-alpha.8 and 8.6.21."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-10T20:43:52.328Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/parse-community/parse-server/security/advisories/GHSA-6r2j-cxgf-495f",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-6r2j-cxgf-495f"
        },
        {
          "name": "https://github.com/parse-community/parse-server/releases/tag/8.6.21",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/releases/tag/8.6.21"
        },
        {
          "name": "https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.8"
        }
      ],
      "source": {
        "advisory": "GHSA-6r2j-cxgf-495f",
        "discovery": "UNKNOWN"
      },
      "title": "Parse Server session token exfiltration via `redirectClassNameForKey` query parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-30965",
    "datePublished": "2026-03-10T20:43:52.328Z",
    "dateReserved": "2026-03-07T17:53:48.815Z",
    "dateUpdated": "2026-03-11T14:27:48.323Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-30965\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-03-10T21:16:48.820\",\"lastModified\":\"2026-03-11T15:31:39.400\",\"vulnStatus\":\"Analyzed\",\"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 9.5.2-alpha.8 and 8.6.21, a vulnerability in Parse Server\u0027s query handling allows an authenticated or unauthenticated attacker to exfiltrate session tokens of other users by exploiting the redirectClassNameForKey query parameter. Exfiltrated session tokens can be used to take over user accounts. The vulnerability requires the attacker to be able to create or update an object with a new relation field, which depends on the Class-Level Permissions of at least one class. This vulnerability is fixed in 9.5.2-alpha.8 and 8.6.21.\"},{\"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 9.5.2-alpha.8 y 8.6.21, una vulnerabilidad en el manejo de consultas de Parse Server permite a un atacante autenticado o no autenticado exfiltrar tokens de sesi\u00f3n de otros usuarios explotando el par\u00e1metro de consulta redirectClassNameForKey. Los tokens de sesi\u00f3n exfiltrados pueden ser usados para tomar el control de cuentas de usuario. La vulnerabilidad requiere que el atacante pueda crear o actualizar un objeto con un nuevo campo de relaci\u00f3n, lo cual depende de los Permisos a Nivel de Clase de al menos una clase. Esta vulnerabilidad est\u00e1 corregida en 9.5.2-alpha.8 y 8.6.21.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/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\",\"baseScore\":9.9,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"HIGH\",\"subIntegrityImpact\":\"HIGH\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*\",\"versionEndExcluding\":\"8.6.21\",\"matchCriteriaId\":\"7D18B8D4-DC43-4F34-B68A-241F384AF08F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"9.0.0\",\"versionEndExcluding\":\"9.5.2\",\"matchCriteriaId\":\"E66572ED-597B-4D8E-A636-733D463A4E4D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha1:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"E0D611B9-CD4F-418B-8FBD-CFA1BCA9E817\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha2:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"6521B8A9-6116-4CAE-9B5E-F22C204B1F0C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha3:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"601B2CF1-D29A-42CC-8405-185C1A8E1EB2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha4:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"BC9F2B9D-026F-454B-B565-05AA441FA54F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha5:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"FDDB20F1-F6A7-4B1E-B075-CC250613D826\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha6:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"CA14D0B7-B952-4C4E-B271-3EBB51C03E9C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha7:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"19B7C5A9-B59A-4A47-B4F0-13C7C796B496\"}]}]}],\"references\":[{\"url\":\"https://github.com/parse-community/parse-server/releases/tag/8.6.21\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Product\",\"Release Notes\"]},{\"url\":\"https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.8\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Product\",\"Release Notes\"]},{\"url\":\"https://github.com/parse-community/parse-server/security/advisories/GHSA-6r2j-cxgf-495f\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\",\"Mitigation\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"Parse Server session token exfiltration via `redirectClassNameForKey` query parameter\", \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-863\", \"lang\": \"en\", \"description\": \"CWE-863: Incorrect Authorization\", \"type\": \"CWE\"}]}], \"metrics\": [{\"cvssV4_0\": {\"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnIntegrityImpact\": \"HIGH\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"HIGH\", \"subIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"baseScore\": 9.9, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N\", \"version\": \"4.0\"}}], \"references\": [{\"name\": \"https://github.com/parse-community/parse-server/security/advisories/GHSA-6r2j-cxgf-495f\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/parse-community/parse-server/security/advisories/GHSA-6r2j-cxgf-495f\"}, {\"name\": \"https://github.com/parse-community/parse-server/releases/tag/8.6.21\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/parse-community/parse-server/releases/tag/8.6.21\"}, {\"name\": \"https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.8\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.8\"}], \"affected\": [{\"vendor\": \"parse-community\", \"product\": \"parse-server\", \"versions\": [{\"version\": \"\u003e= 9.0.0 \u003c 9.5.2-alpha.8\", \"status\": \"affected\"}, {\"version\": \"\u003c 8.6.21\", \"status\": \"affected\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-03-10T20:43:52.328Z\"}, \"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 9.5.2-alpha.8 and 8.6.21, a vulnerability in Parse Server\u0027s query handling allows an authenticated or unauthenticated attacker to exfiltrate session tokens of other users by exploiting the redirectClassNameForKey query parameter. Exfiltrated session tokens can be used to take over user accounts. The vulnerability requires the attacker to be able to create or update an object with a new relation field, which depends on the Class-Level Permissions of at least one class. This vulnerability is fixed in 9.5.2-alpha.8 and 8.6.21.\"}], \"source\": {\"advisory\": \"GHSA-6r2j-cxgf-495f\", \"discovery\": \"UNKNOWN\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-30965\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-11T14:27:33.466755Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-11T14:27:41.224Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-30965\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"GitHub_M\", \"dateReserved\": \"2026-03-07T17:53:48.815Z\", \"datePublished\": \"2026-03-10T20:43:52.328Z\", \"dateUpdated\": \"2026-03-11T14:27:48.323Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.