{ "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-2026-31901", "tracking": { "current_release_date": "2026-03-23T03:31:21.178552Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-31901", "initial_release_date": "2026-03-11T00:53:12.480285Z", "revision_history": [ { "date": "2026-03-11T00:53:12.480285Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-03-11T00:53:28.703077Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-11T19:39:03.921915Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (2).| References created (3).| CWES updated (1)." }, { "date": "2026-03-11T19:39:06.557405Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-11T20:26:31.771822Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-03-11T20:26:38.923467Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-11T21:56:47.003896Z", "number": "7", "summary": "References created (1)." }, { "date": "2026-03-12T14:57:28.504874Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-12T20:38:51.199012Z", "number": "9", "summary": "Unknown change." }, { "date": "2026-03-13T17:27:33.895370Z", "number": "10", "summary": "CVSS created.| Products created (2).| Product Identifiers created (9).| Products connected (7)." }, { "date": "2026-03-13T17:27:36.988165Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-19T15:29:30.285992Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)." }, { "date": "2026-03-19T15:29:32.563176Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:32:15.841358Z", "number": "14", "summary": "Source connected.| CVE status created. (valid)| EPSS created." } ], "status": "interim", "version": "14" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/9.6.0-alpha1", "product": { "name": "vers:unknown/9.6.0-alpha1", "product_id": "CSAFPID-5815241", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha1:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.6.0-alpha2", "product": { "name": "vers:unknown/9.6.0-alpha2", "product_id": "CSAFPID-5815242", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha2:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.6.0-alpha3", "product": { "name": "vers:unknown/9.6.0-alpha3", "product_id": "CSAFPID-5815243", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha3:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.6.0-alpha4", "product": { "name": "vers:unknown/9.6.0-alpha4", "product_id": "CSAFPID-5815244", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha4:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.6.0-alpha5", "product": { "name": "vers:unknown/9.6.0-alpha5", "product_id": "CSAFPID-5815245", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha5:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.6.0-alpha6", "product": { "name": "vers:unknown/9.6.0-alpha6", "product_id": "CSAFPID-5815246", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha6:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/9.6.0-alpha7", "product": { "name": "vers:unknown/9.6.0-alpha7", "product_id": "CSAFPID-5815248", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:9.6.0:alpha7:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/<8.6.34", "product": { "name": "vers:unknown/<8.6.34", "product_id": "CSAFPID-5815247", "product_identification_helper": { "cpe": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=9.0.0|<9.6.0", "product": { "name": "vers:unknown/>=9.0.0|<9.6.0", "product_id": "CSAFPID-5815240", "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/<8.6.34", "product": { "name": "vers:unknown/<8.6.34", "product_id": "CSAFPID-5798766" } }, { "category": "product_version_range", "name": "vers:unknown/>=9.0.0<9.6.0-alpha.8", "product": { "name": "vers:unknown/>=9.0.0<9.6.0-alpha.8", "product_id": "CSAFPID-5798765" } } ], "category": "product_name", "name": "parse-server" } ], "category": "vendor", "name": "parse-community" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-31901", "cwe": { "id": "CWE-204", "name": "Observable Response Discrepancy" }, "notes": [ { "category": "description", "text": "### Impact\n\nThe 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.\n\nThis is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (`verifyUserEmails: true`).\n\n### Patches\n\nThe fix introduces a new Parse Server option `emailVerifySuccessOnInvalidEmail` (default: `true`) that returns a generic success response for all verification email requests, regardless of whether the email address is valid, already verified, or non-existent. This prevents an attacker from distinguishing between these cases.\n\nThe fix also strengthens the input validation for the related `resetPasswordSuccessOnInvalidEmail` option, and adds security checks that warn when either enumeration mitigation is disabled.\n\n### Workarounds\n\nThere is no known workaround.\n\n### References\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-w54v-hf9p-8856\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.8\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.34", "title": "github - https://github.com/advisories/GHSA-w54v-hf9p-8856" }, { "category": "description", "text": "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.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-31901" }, { "category": "description", "text": "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.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-31901" }, { "category": "description", "text": "### Impact\n\nThe 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.\n\nThis is a user enumeration vulnerability that affects any Parse Server deployment with email verification enabled (`verifyUserEmails: true`).\n\n### Patches\n\nThe fix introduces a new Parse Server option `emailVerifySuccessOnInvalidEmail` (default: `true`) that returns a generic success response for all verification email requests, regardless of whether the email address is valid, already verified, or non-existent. This prevents an attacker from distinguishing between these cases.\n\nThe fix also strengthens the input validation for the related `resetPasswordSuccessOnInvalidEmail` option, and adds security checks that warn when either enumeration mitigation is disabled.\n\n### Workarounds\n\nThere is no known workaround.\n\n### References\n\n- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-w54v-hf9p-8856\n- Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.8\n- Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.34", "title": "github - https://api.github.com/advisories/GHSA-w54v-hf9p-8856" }, { "category": "other", "text": "0.00039", "title": "EPSS" }, { "category": "other", "text": "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", "title": "CVSSV4" }, { "category": "other", "text": "6.3", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.0", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score, Is related to (a version of) an uncommon product, Is related to an uncommon product vendor", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5798765", "CSAFPID-5798766", "CSAFPID-5815240", "CSAFPID-5815241", "CSAFPID-5815242", "CSAFPID-5815243", "CSAFPID-5815244", "CSAFPID-5815245", "CSAFPID-5815246", "CSAFPID-5815247", "CSAFPID-5815248" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-w54v-hf9p-8856" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-w54v-hf9p-8856" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-31901" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/31xxx/CVE-2026-31901.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31901" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31901" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-31901" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-w54v-hf9p-8856" }, { "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-w54v-hf9p-8856" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/releases/tag/8.6.34" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd", "url": "https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.8" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-w54v-hf9p-8856" }, { "category": "external", "summary": "Reference - github", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31901" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-5798765", "CSAFPID-5798766", "CSAFPID-5815240", "CSAFPID-5815241", "CSAFPID-5815242", "CSAFPID-5815243", "CSAFPID-5815244", "CSAFPID-5815245", "CSAFPID-5815246", "CSAFPID-5815247", "CSAFPID-5815248" ] } ], "title": "CVE-2026-31901" } ] }