CVE-2026-33163 (GCVE-0-2026-33163)

Vulnerability from cvelistv5 – Published: 2026-03-18 21:58 – Updated: 2026-03-19 14:00
VLAI?
Title
Parse Server leaks protected fields via LiveQuery afterEvent trigger
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.35 and 8.6.50, when a `Parse.Cloud.afterLiveQueryEvent` trigger is registered for a class, the LiveQuery server leaks protected fields and `authData` to all subscribers of that class. Fields configured as protected via Class-Level Permissions (`protectedFields`) are included in LiveQuery event payloads for all event types (create, update, delete, enter, leave). Any user with sufficient CLP permissions to subscribe to the affected class can receive protected field data of other users, including sensitive personal information and OAuth tokens from third-party authentication providers. The vulnerability was caused by a reference detachment bug. When an `afterEvent` trigger is registered, the LiveQuery server converts the event object to a `Parse.Object` for the trigger, then creates a new JSON copy via `toJSONwithObjects()`. The sensitive data filter was applied to the `Parse.Object` reference, but the unfiltered JSON copy was sent to clients. The fix in versions 9.6.0-alpha.35 and 8.6.50 ensures that the JSON copy is assigned back to the response object before filtering, so the filter operates on the actual data sent to clients. As a workaround, remove all `Parse.Cloud.afterLiveQueryEvent` trigger registrations. Without an `afterEvent` trigger, the reference detachment does not occur and protected fields are correctly filtered.
Severity ?
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
parse-community parse-server Affected: >= 9.0.0, < 9.6.0-alpha.35
Affected: < 8.6.50
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33163",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-19T14:00:23.867731Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-19T14:00:33.619Z",
          "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.35"
            },
            {
              "status": "affected",
              "version": "\u003c 8.6.50"
            }
          ]
        }
      ],
      "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.35 and 8.6.50, when a `Parse.Cloud.afterLiveQueryEvent` trigger is registered for a class, the LiveQuery server leaks protected fields and `authData` to all subscribers of that class. Fields configured as protected via Class-Level Permissions (`protectedFields`) are included in LiveQuery event payloads for all event types (create, update, delete, enter, leave). Any user with sufficient CLP permissions to subscribe to the affected class can receive protected field data of other users, including sensitive personal information and OAuth tokens from third-party authentication providers. The vulnerability was caused by a reference detachment bug. When an `afterEvent` trigger is registered, the LiveQuery server converts the event object to a `Parse.Object` for the trigger, then creates a new JSON copy via `toJSONwithObjects()`. The sensitive data filter was applied to the `Parse.Object` reference, but the unfiltered JSON copy was sent to clients. The fix in versions 9.6.0-alpha.35 and 8.6.50 ensures that the JSON copy is assigned back to the response object before filtering, so the filter operates on the actual data sent to clients. As a workaround, remove all `Parse.Cloud.afterLiveQueryEvent` trigger registrations. Without an `afterEvent` trigger, the reference detachment does not occur and protected fields are correctly filtered."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "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:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-18T21:58:04.293Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/parse-community/parse-server/security/advisories/GHSA-5hmj-jcgp-6hff",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-5hmj-jcgp-6hff"
        },
        {
          "name": "https://github.com/parse-community/parse-server/pull/10232",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/pull/10232"
        },
        {
          "name": "https://github.com/parse-community/parse-server/pull/10233",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/parse-community/parse-server/pull/10233"
        }
      ],
      "source": {
        "advisory": "GHSA-5hmj-jcgp-6hff",
        "discovery": "UNKNOWN"
      },
      "title": "Parse Server leaks protected fields via LiveQuery afterEvent trigger"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-33163",
    "datePublished": "2026-03-18T21:58:04.293Z",
    "dateReserved": "2026-03-17T21:17:08.887Z",
    "dateUpdated": "2026-03-19T14:00:33.619Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-33163",
      "date": "2026-04-14",
      "epss": "0.00028",
      "percentile": "0.07763"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-33163\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-03-18T22:16:26.270\",\"lastModified\":\"2026-03-19T16:35:28.417\",\"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 9.6.0-alpha.35 and 8.6.50, when a `Parse.Cloud.afterLiveQueryEvent` trigger is registered for a class, the LiveQuery server leaks protected fields and `authData` to all subscribers of that class. Fields configured as protected via Class-Level Permissions (`protectedFields`) are included in LiveQuery event payloads for all event types (create, update, delete, enter, leave). Any user with sufficient CLP permissions to subscribe to the affected class can receive protected field data of other users, including sensitive personal information and OAuth tokens from third-party authentication providers. The vulnerability was caused by a reference detachment bug. When an `afterEvent` trigger is registered, the LiveQuery server converts the event object to a `Parse.Object` for the trigger, then creates a new JSON copy via `toJSONwithObjects()`. The sensitive data filter was applied to the `Parse.Object` reference, but the unfiltered JSON copy was sent to clients. The fix in versions 9.6.0-alpha.35 and 8.6.50 ensures that the JSON copy is assigned back to the response object before filtering, so the filter operates on the actual data sent to clients. As a workaround, remove all `Parse.Cloud.afterLiveQueryEvent` trigger registrations. Without an `afterEvent` trigger, the reference detachment does not occur and protected fields are correctly filtered.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/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\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"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:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*\",\"versionEndExcluding\":\"8.6.50\",\"matchCriteriaId\":\"F9E8CF62-B899-419B-AC14-C0C208455A4D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"9.0.0\",\"versionEndExcluding\":\"9.6.0\",\"matchCriteriaId\":\"1BAC01F8-0899-482C-8D91-64671BF2859A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"BBED261F-CA1B-44BC-9C3A-37378590EFEE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha10:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"418338C9-6AEC-492C-ACA4-9B3C0AAE149C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha11:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"808B6482-BF8E-407D-8462-E757657CC323\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha12:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"B84C28F8-AADE-41BB-A0EF-B701AB57DC3A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha13:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"7567BB81-7837-4265-B792-6A9B73CECF93\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha14:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"0035C6F1-21B9-42D1-BE29-690905F3558C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha15:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"623FB30A-0693-4449-80FA-16D36B1BE66C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha16:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"9B420167-CD3E-45A7-AD9A-0F83AEC634BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha17:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"030A8626-DBBD-4BF2-B362-79B44FB1204D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha18:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"D38CFCC3-2AA9-4C8E-9064-FE97E6E8C45C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha19:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"65BB78F2-3A1A-4CD1-B8A8-4AB043B5CA50\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha2:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"EDC98AF7-8620-4A25-9BE5-623672599677\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha20:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"23E28E0F-9379-4628-B9DC-8C94A45902CF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha21:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"6631BE51-74FB-40C0-9E91-0EDF2DCADD7A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha22:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"8B0E4254-14A3-4EB6-9E98-CF45EB08B17F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha23:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"0FF63FDE-75F5-44B6-A958-CF653D84D3B4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha24:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"252B812D-A162-41C1-91CD-08D0CBAC5C46\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha25:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"421691EA-F55A-4738-8ABD-74B53B6DF155\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha26:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"5E7FAB59-142E-4191-9A6F-0744D810CD81\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha27:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"B010F310-05A1-48AE-B002-8F4C7FA62EB3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha28:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"4D3B2C32-16D8-415B-A49F-060ECE8F0F33\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha29:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"43BE83C2-C756-4A5A-A340-B7D1FB52078D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha3:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"DF340605-8CC8-4543-9F5D-E8602D258CED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha30:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"702EBB22-3E9F-4CBE-B855-2E3642C530B1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha31:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"7C17AD66-684F-4662-AF16-838FF05F47D5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha32:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"13C25963-CAE7-49AA-A941-254DCE289E35\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha33:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"B6BF0C2F-DD2B-4864-961F-CA808EF22633\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha34:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"8FBB21E9-CB73-4CB1-841A-D1C08167DB51\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha4:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"A052DFCA-EDCC-43D7-82C7-E5311F6F7687\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha5:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"12B11714-B961-4330-B241-FC5AF94FDBE8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha6:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"37A7C42B-4986-4BB6-BB27-0324A9AA1CFF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha7:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"C793834B-64B4-4DE9-BD7D-79B52C30C34E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha8:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"7AD455C8-88BE-4A0A-B33D-3A7811FFB753\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha9:*:*:*:node.js:*:*\",\"matchCriteriaId\":\"26C475A2-997C-4C3A-8CB6-04AB3534BBC3\"}]}]}],\"references\":[{\"url\":\"https://github.com/parse-community/parse-server/pull/10232\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Issue Tracking\"]},{\"url\":\"https://github.com/parse-community/parse-server/pull/10233\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Issue Tracking\"]},{\"url\":\"https://github.com/parse-community/parse-server/security/advisories/GHSA-5hmj-jcgp-6hff\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-33163\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-19T14:00:23.867731Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-19T14:00:28.885Z\"}}], \"cna\": {\"title\": \"Parse Server leaks protected fields via LiveQuery afterEvent trigger\", \"source\": {\"advisory\": \"GHSA-5hmj-jcgp-6hff\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.2, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"parse-community\", \"product\": \"parse-server\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 9.0.0, \u003c 9.6.0-alpha.35\"}, {\"status\": \"affected\", \"version\": \"\u003c 8.6.50\"}]}], \"references\": [{\"url\": \"https://github.com/parse-community/parse-server/security/advisories/GHSA-5hmj-jcgp-6hff\", \"name\": \"https://github.com/parse-community/parse-server/security/advisories/GHSA-5hmj-jcgp-6hff\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/parse-community/parse-server/pull/10232\", \"name\": \"https://github.com/parse-community/parse-server/pull/10232\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/parse-community/parse-server/pull/10233\", \"name\": \"https://github.com/parse-community/parse-server/pull/10233\", \"tags\": [\"x_refsource_MISC\"]}], \"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.35 and 8.6.50, when a `Parse.Cloud.afterLiveQueryEvent` trigger is registered for a class, the LiveQuery server leaks protected fields and `authData` to all subscribers of that class. Fields configured as protected via Class-Level Permissions (`protectedFields`) are included in LiveQuery event payloads for all event types (create, update, delete, enter, leave). Any user with sufficient CLP permissions to subscribe to the affected class can receive protected field data of other users, including sensitive personal information and OAuth tokens from third-party authentication providers. The vulnerability was caused by a reference detachment bug. When an `afterEvent` trigger is registered, the LiveQuery server converts the event object to a `Parse.Object` for the trigger, then creates a new JSON copy via `toJSONwithObjects()`. The sensitive data filter was applied to the `Parse.Object` reference, but the unfiltered JSON copy was sent to clients. The fix in versions 9.6.0-alpha.35 and 8.6.50 ensures that the JSON copy is assigned back to the response object before filtering, so the filter operates on the actual data sent to clients. As a workaround, remove all `Parse.Cloud.afterLiveQueryEvent` trigger registrations. Without an `afterEvent` trigger, the reference detachment does not occur and protected fields are correctly filtered.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-03-18T21:58:04.293Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-33163\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-19T14:00:33.619Z\", \"dateReserved\": \"2026-03-17T21:17:08.887Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-03-18T21:58:04.293Z\", \"assignerShortName\": \"GitHub_M\"}",
      "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.