{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-34532", "tracking": { "current_release_date": "2026-04-02T18:26:33.771078Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-34532", "initial_release_date": "2026-03-31T15:27:29.129573Z", "revision_history": [ { "date": "2026-03-31T15:27:29.129573Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)." }, { "date": "2026-03-31T15:27:31.858634Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-31T15:39:18.590232Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (2).| References created (5).| CWES updated (1)." }, { "date": "2026-03-31T15:39:20.247725Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-31T17:39:03.903715Z", "number": "5", "summary": "Unknown change." }, { "date": "2026-04-01T01:03:21.031853Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (7).| CWES updated (1)." }, { "date": "2026-04-01T01:03:27.174292Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-04-01T15:06:35.342845Z", "number": "8", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-04-02T18:25:51.963442Z", "number": "9", "summary": "CVSS created.| Products created (1).| Product Identifiers created (12).| Products connected (11)." }, { "date": "2026-04-02T18:25:54.554067Z", "number": "10", "summary": "NCSC Score updated." } ], "status": "interim", "version": "10" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha1", "product": { "name": "vers:unknown/9.7.0-alpha1", "product_id": "CSAFPID-5982838", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha1:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha10", "product": { "name": "vers:unknown/9.7.0-alpha10", "product_id": "CSAFPID-5985070", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha10:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha2", "product": { "name": "vers:unknown/9.7.0-alpha2", "product_id": "CSAFPID-5982839", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha2:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha3", "product": { "name": "vers:unknown/9.7.0-alpha3", "product_id": "CSAFPID-5982840", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha3:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha4", "product": { "name": "vers:unknown/9.7.0-alpha4", "product_id": "CSAFPID-5982841", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha4:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha5", "product": { "name": "vers:unknown/9.7.0-alpha5", "product_id": "CSAFPID-5982842", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha5:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha6", "product": { "name": "vers:unknown/9.7.0-alpha6", "product_id": "CSAFPID-5982843", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha6:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha7", "product": { "name": "vers:unknown/9.7.0-alpha7", "product_id": "CSAFPID-5982844", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha7:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha8", "product": { "name": "vers:unknown/9.7.0-alpha8", "product_id": "CSAFPID-5985076", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha8:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.7.0-alpha9", "product": { "name": "vers:unknown/9.7.0-alpha9", "product_id": "CSAFPID-5985077", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha9:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/<8.6.67", "product": { "name": "vers:unknown/<8.6.67", "product_id": "CSAFPID-5985132", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=9.0.0|<9.7.0", "product": { "name": "vers:unknown/>=9.0.0|<9.7.0", "product_id": "CSAFPID-5982837", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*" } } } ], "category": "product_name", "name": "parse-server" } ], "category": "vendor", "name": "Parse Platform" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<8.6.67", "product": { "name": "vers:unknown/<8.6.67", "product_id": "CSAFPID-5968900" } }, { "category": "product_version_range", "name": "vers:unknown/>=9.0.0|<9.7.0-alpha.11", "product": { "name": "vers:unknown/>=9.0.0|<9.7.0-alpha.11", "product_id": "CSAFPID-5968901" } } ], "category": "product_name", "name": "parse-server" } ], "category": "vendor", "name": "parse-community" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-34532", "cwe": { "id": "CWE-863", "name": "Incorrect Authorization" }, "notes": [ { "category": "description", "text": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending \"prototype.constructor\" to the function name in the URL. When a Cloud Function handler is declared using the function keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped. This allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as requireUser, requireMaster, or custom validation logic. This issue has been patched in versions 8.6.67 and 9.7.0-alpha.11.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34532" }, { "category": "description", "text": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending \"prototype.constructor\" to the function name in the URL. When a Cloud Function handler is declared using the function keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped. This allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as requireUser, requireMaster, or custom validation logic. This issue has been patched in versions 8.6.67 and 9.7.0-alpha.11.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/34xxx/CVE-2026-34532.json" }, { "category": "description", "text": "### Impact\n\nAn attacker can bypass Cloud Function validator access controls by appending `.prototype.constructor` to the function name in the URL. When a Cloud Function handler is declared using the `function` keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped.\n\nThis allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as `requireUser`, `requireMaster`, or custom validation logic.\n\n### Patches\n\nThe trigger store traversal now verifies that each intermediate node is a legitimate store object before continuing traversal. If the traversal encounters a non-store value such as a function handler, it stops and returns an empty store, preventing prototype chain escape.\n\n### Workarounds\n\nUse arrow functions instead of the `function` keyword for Cloud Function handlers. Arrow functions do not have a `prototype` property and are not affected by this vulnerability.\n\n### Resources\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-vpj2-qq7w-5qq6\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/pull/10342\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/pull/10343", "title": "github - https://api.github.com/advisories/GHSA-vpj2-qq7w-5qq6" }, { "category": "other", "text": "0.00044", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/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", "title": "CVSSV4" }, { "category": "other", "text": "9.1", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.7", "title": "NCSC Score" }, { "category": "other", "text": "Is related to CWE-863 (Incorrect Authorization)", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to an uncommon product vendor, Is related to (a version of) an uncommon product", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5968900", "CSAFPID-5968901", "CSAFPID-5982837", "CSAFPID-5982838", "CSAFPID-5982839", "CSAFPID-5982840", "CSAFPID-5982841", "CSAFPID-5982842", "CSAFPID-5982843", "CSAFPID-5982844", "CSAFPID-5985070", "CSAFPID-5985076", "CSAFPID-5985077", "CSAFPID-5985132" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34532" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/34xxx/CVE-2026-34532.json" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-vpj2-qq7w-5qq6" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/commit/4fc48cf28f22eea200d74d883505f485234a48d7" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/commit/dc59e272665644083c5b7f6862d88ce1ef0b2674" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/pull/10342" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/pull/10343" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/security/advisories/GHSA-vpj2-qq7w-5qq6" }, { "category": "external", "summary": "Reference - github", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34532" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-vpj2-qq7w-5qq6" } ], "scores": [ { "cvss_v3": { "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" }, "products": [ "CSAFPID-5968900", "CSAFPID-5968901", "CSAFPID-5982837", "CSAFPID-5982838", "CSAFPID-5982839", "CSAFPID-5982840", "CSAFPID-5982841", "CSAFPID-5982842", "CSAFPID-5982843", "CSAFPID-5982844", "CSAFPID-5985070", "CSAFPID-5985076", "CSAFPID-5985077", "CSAFPID-5985132" ] } ], "title": "CVE-2026-34532" } ] }