{ "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-2026-34573", "tracking": { "current_release_date": "2026-04-02T18:31:06.725056Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-34573", "initial_release_date": "2026-03-31T15:38:48.925817Z", "revision_history": [ { "date": "2026-03-31T15:38:48.925817Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (2).| References created (5).| CWES updated (1)." }, { "date": "2026-03-31T15:38:51.611463Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-31T16:26:00.869146Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)." }, { "date": "2026-03-31T16:26:02.548141Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-31T19:38:58.689420Z", "number": "5", "summary": "Unknown change." }, { "date": "2026-04-01T01:03:20.734323Z", "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": "2026-04-01T15:06:27.252397Z", "number": "8", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-04-02T18:25:51.128727Z", "number": "9", "summary": "CVSS created.| Products created (1).| Product Identifiers created (13).| Products connected (12)." }, { "date": "2026-04-02T18:25:53.440291Z", "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-alpha11", "product": { "name": "vers:unknown/9.7.0-alpha11", "product_id": "CSAFPID-5985071", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.7.0:alpha11:*:*:*: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/<8.6.68", "product": { "name": "vers:unknown/<8.6.68", "product_id": "CSAFPID-5985131", "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/<8.6.68", "product": { "name": "vers:unknown/<8.6.68", "product_id": "CSAFPID-5968893" } }, { "category": "product_version_range", "name": "vers:unknown/>=9.0.0|<9.7.0-alpha.12", "product": { "name": "vers:unknown/>=9.0.0|<9.7.0-alpha.12", "product_id": "CSAFPID-5968894" } } ], "category": "product_name", "name": "parse-server" } ], "category": "vendor", "name": "parse-community" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-34573", "cwe": { "id": "CWE-407", "name": "Inefficient Algorithmic Complexity" }, "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 8.6.68 and 9.7.0-alpha.12, the GraphQL query complexity validator can be exploited to cause a denial-of-service by sending a crafted query with binary fan-out fragment spreads. A single unauthenticated request can block the Node.js event loop for seconds, denying service to all concurrent users. This only affects deployments that have enabled the requestComplexity.graphQLDepth or requestComplexity.graphQLFields configuration options. This issue has been patched in versions 8.6.68 and 9.7.0-alpha.12.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/34xxx/CVE-2026-34573.json" }, { "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 8.6.68 and 9.7.0-alpha.12, the GraphQL query complexity validator can be exploited to cause a denial-of-service by sending a crafted query with binary fan-out fragment spreads. A single unauthenticated request can block the Node.js event loop for seconds, denying service to all concurrent users. This only affects deployments that have enabled the requestComplexity.graphQLDepth or requestComplexity.graphQLFields configuration options. This issue has been patched in versions 8.6.68 and 9.7.0-alpha.12.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34573" }, { "category": "description", "text": "### Impact\n\nThe GraphQL query complexity validator can be exploited to cause a denial-of-service by sending a crafted query with binary fan-out fragment spreads. A single unauthenticated request can block the Node.js event loop for seconds, denying service to all concurrent users. This only affects deployments that have enabled the `requestComplexity.graphQLDepth` or `requestComplexity.graphQLFields` configuration options.\n\n### Patches\n\nThe fix replaces the per-branch fragment traversal with memoized fragment computation, reducing the traversal from exponential O(2^N) to linear O(N) time. Additionally, early termination aborts the traversal as soon as configured limits are exceeded.\n\n### Workarounds\n\nDisable GraphQL complexity limits by setting `requestComplexity.graphQLDepth` and `requestComplexity.graphQLFields` to `-1` (the default).\n\n### Resources\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-mfj6-6p54-m98c\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/pull/10344\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/pull/10345", "title": "github - https://api.github.com/advisories/GHSA-mfj6-6p54-m98c" }, { "category": "other", "text": "0.00045", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "title": "CVSSV4" }, { "category": "other", "text": "8.2", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "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-5968893", "CSAFPID-5968894", "CSAFPID-5982837", "CSAFPID-5982838", "CSAFPID-5982839", "CSAFPID-5982840", "CSAFPID-5982841", "CSAFPID-5982842", "CSAFPID-5982843", "CSAFPID-5982844", "CSAFPID-5985070", "CSAFPID-5985071", "CSAFPID-5985076", "CSAFPID-5985077", "CSAFPID-5985131" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/34xxx/CVE-2026-34573.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34573" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-mfj6-6p54-m98c" }, { "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/security/advisories/GHSA-mfj6-6p54-m98c" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/pull/10344" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/pull/10345" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/commit/ea15412795f34594cc8a674fe858d445675e0295" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/commit/f759bda075298ec44e2b4fb57659a0c56620483b" }, { "category": "external", "summary": "Reference - github", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34573" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-mfj6-6p54-m98c" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-5968893", "CSAFPID-5968894", "CSAFPID-5982837", "CSAFPID-5982838", "CSAFPID-5982839", "CSAFPID-5982840", "CSAFPID-5982841", "CSAFPID-5982842", "CSAFPID-5982843", "CSAFPID-5982844", "CSAFPID-5985070", "CSAFPID-5985071", "CSAFPID-5985076", "CSAFPID-5985077", "CSAFPID-5985131" ] } ], "title": "CVE-2026-34573" } ] }