{ "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-2026-30823", "tracking": { "current_release_date": "2026-03-23T04:06:11.141415Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-30823", "initial_release_date": "2026-03-06T13:06:50.416301Z", "revision_history": [ { "date": "2026-03-06T13:06:50.416301Z", "number": "1", "summary": "CVE created.| Source connected.| CVE status created. (valid)| Products connected (1).| References created (9)." }, { "date": "2026-03-06T13:06:51.896748Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-06T22:39:33.457211Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-06T22:39:40.471211Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-07T00:21:05.234867Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (1).| CWES updated (1)." }, { "date": "2026-03-07T00:21:12.848906Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-07T05:38:40.471770Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products created (1).| References created (2).| CWES updated (1)." }, { "date": "2026-03-07T05:38:45.957607Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-03-07T06:24:48.256794Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-07T06:24:54.987735Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-03-07T14:46:36.814084Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-07T14:46:42.715608Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-09T13:39:51.959820Z", "number": "13", "summary": "References created (2)." }, { "date": "2026-03-09T13:39:55.310780Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-09T18:21:03.411249Z", "number": "15", "summary": "References created (2)." }, { "date": "2026-03-09T21:38:51.776264Z", "number": "16", "summary": "Unknown change." }, { "date": "2026-03-11T14:25:34.410782Z", "number": "17", "summary": "Products connected (1).| Product Identifiers created (1).| Exploits created (1)." }, { "date": "2026-03-11T14:25:40.454747Z", "number": "18", "summary": "NCSC Score updated." }, { "date": "2026-03-19T15:29:19.208873Z", "number": "19", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1)." }, { "date": "2026-03-19T15:29:21.390535Z", "number": "20", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:33:58.792489Z", "number": "21", "summary": "Source connected.| CVE status created. (valid)| EPSS created." } ], "status": "interim", "version": "21" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<3.0.13", "product": { "name": "vers:unknown/<3.0.13", "product_id": "CSAFPID-5768607", "product_identification_helper": { "cpe": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Flowise" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=0|<3.0.13", "product": { "name": "vers:unknown/>=0|<3.0.13", "product_id": "CSAFPID-5767907" } } ], "category": "product_name", "name": "flowise" } ], "category": "vendor", "name": "FlowiseAI" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<3.0.13", "product": { "name": "vers:unknown/<3.0.13", "product_id": "CSAFPID-5766734" } } ], "category": "product_name", "name": "Flowise" } ], "category": "vendor", "name": "Open Source" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-30823", "cwe": { "id": "CWE-639", "name": "Authorization Bypass Through User-Controlled Key" }, "notes": [ { "category": "description", "text": "### Summary\nThe Flowise platform has a critical Insecure Direct Object Reference (IDOR) vulnerability combined with a Business Logic Flaw in the PUT /api/v1/loginmethod endpoint.\n\nWhile the endpoint requires authentication, it fails to validate if the authenticated user has ownership or administrative rights over the target organizationId. This allows any low-privileged user (including \"Free\" plan users) to:\n\n1. Overwrite the SSO configuration of any other organization.\n2. Enable \"Enterprise-only\" features (SSO/SAML) without a license.\n3. Perform Account Takeover by redirecting the authentication flow.\n\n### Details\nThe backend accepts the organizationId parameter from the JSON body and updates the database record corresponding to that ID. There is no middleware or logic check to ensure request.user.organizationId === body.organizationId.\n\n### PoC\nPrerequisites:\n1. The attacker creates a standard \"Free\" account and obtains a valid JWT token (Cookie/Header).\n2. The attacker identifies the target organizationId (e.g., bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d).\n\n**Step-by-Step Exploitation**: The attacker sends the following PUT request to overwrite the victim's Google SSO configuration.\n\n**Request**:\n\n```http\nPUT /api/v1/loginmethod HTTP/2\nHost: cloud.flowiseai.com\nCookie: token=\nContent-Type: application/json\nAccept: application/json\n\n{\n \"organizationId\": \"bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d\",\n \"userId\": \"6ab311fa-0d0a-4bd6-996e-4ae721377fb2\", \n \"providers\": [\n {\n \"providerLabel\": \"Google\",\n \"providerName\": \"google\",\n \"config\": {\n \"clientID\": \"ATTACKER_MALICIOUS_CLIENT_ID\",\n \"clientSecret\": \"ATTACKER_MALICIOUS_SECRET\"\n },\n \"status\": \"enable\"\n }\n ]\n}\n```\n\n**Response**: The server responds with 200 OK, confirming the modification has been applied to the victim's organization context.\n\n```json\n{\n \"status\": \"OK\",\n \"organizationId\": \"bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d\"\n}\n```\n\n### Impact\n\n- **Account Takeover**: An attacker can replace a victim organization's legitimate OAuth credentials (e.g., Google Client ID) with their own malicious application credentials. When victim employees try to log in via SSO, they are authenticated against the attacker's application, potentially allowing the attacker to hijack sessions or steal credentials.\n- **License Control Bypass**: Users on the \"Free\" tier can illicitly enable and configure SSO providers (Azure, Okta, etc.), which are features strictly restricted to the \"Enterprise\" plan.", "title": "github - https://github.com/advisories/GHSA-cwc3-p92j-g7qm" }, { "category": "description", "text": "### Summary\nThe Flowise platform has a critical Insecure Direct Object Reference (IDOR) vulnerability combined with a Business Logic Flaw in the PUT /api/v1/loginmethod endpoint.\n\nWhile the endpoint requires authentication, it fails to validate if the authenticated user has ownership or administrative rights over the target organizationId. This allows any low-privileged user (including \"Free\" plan users) to:\n\n1. Overwrite the SSO configuration of any other organization.\n2. Enable \"Enterprise-only\" features (SSO/SAML) without a license.\n3. Perform Account Takeover by redirecting the authentication flow.\n\n### Details\nThe backend accepts the organizationId parameter from the JSON body and updates the database record corresponding to that ID. There is no middleware or logic check to ensure request.user.organizationId === body.organizationId.\n\n### PoC\nPrerequisites:\n1. The attacker creates a standard \"Free\" account and obtains a valid JWT token (Cookie/Header).\n2. The attacker identifies the target organizationId (e.g., bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d).\n\n**Step-by-Step Exploitation**: The attacker sends the following PUT request to overwrite the victim's Google SSO configuration.\n\n**Request**:\n\n```http\nPUT /api/v1/loginmethod HTTP/2\nHost: cloud.flowiseai.com\nCookie: token=\nContent-Type: application/json\nAccept: application/json\n\n{\n \"organizationId\": \"bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d\",\n \"userId\": \"6ab311fa-0d0a-4bd6-996e-4ae721377fb2\", \n \"providers\": [\n {\n \"providerLabel\": \"Google\",\n \"providerName\": \"google\",\n \"config\": {\n \"clientID\": \"ATTACKER_MALICIOUS_CLIENT_ID\",\n \"clientSecret\": \"ATTACKER_MALICIOUS_SECRET\"\n },\n \"status\": \"enable\"\n }\n ]\n}\n```\n\n**Response**: The server responds with 200 OK, confirming the modification has been applied to the victim's organization context.\n\n```json\n{\n \"status\": \"OK\",\n \"organizationId\": \"bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d\"\n}\n```\n\n### Impact\n\n- **Account Takeover**: An attacker can replace a victim organization's legitimate OAuth credentials (e.g., Google Client ID) with their own malicious application credentials. When victim employees try to log in via SSO, they are authenticated against the attacker's application, potentially allowing the attacker to hijack sessions or steal credentials.\n- **License Control Bypass**: Users on the \"Free\" tier can illicitly enable and configure SSO providers (Azure, Okta, etc.), which are features strictly restricted to the \"Enterprise\" plan.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-cwc3-p92j-g7qm.json?alt=media" }, { "category": "description", "text": "Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, there is an IDOR vulnerability, leading to account takeover and enterprise feature bypass via SSO configuration. This issue has been patched in version 3.0.13.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-30823" }, { "category": "description", "text": "Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, there is an IDOR vulnerability, leading to account takeover and enterprise feature bypass via SSO configuration. This issue has been patched in version 3.0.13.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-30823" }, { "category": "description", "text": "### Summary\nThe Flowise platform has a critical Insecure Direct Object Reference (IDOR) vulnerability combined with a Business Logic Flaw in the PUT /api/v1/loginmethod endpoint.\n\nWhile the endpoint requires authentication, it fails to validate if the authenticated user has ownership or administrative rights over the target organizationId. This allows any low-privileged user (including \"Free\" plan users) to:\n\n1. Overwrite the SSO configuration of any other organization.\n2. Enable \"Enterprise-only\" features (SSO/SAML) without a license.\n3. Perform Account Takeover by redirecting the authentication flow.\n\n### Details\nThe backend accepts the organizationId parameter from the JSON body and updates the database record corresponding to that ID. There is no middleware or logic check to ensure request.user.organizationId === body.organizationId.\n\n### PoC\nPrerequisites:\n1. The attacker creates a standard \"Free\" account and obtains a valid JWT token (Cookie/Header).\n2. The attacker identifies the target organizationId (e.g., bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d).\n\n**Step-by-Step Exploitation**: The attacker sends the following PUT request to overwrite the victim's Google SSO configuration.\n\n**Request**:\n\n```http\nPUT /api/v1/loginmethod HTTP/2\nHost: cloud.flowiseai.com\nCookie: token=\nContent-Type: application/json\nAccept: application/json\n\n{\n \"organizationId\": \"bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d\",\n \"userId\": \"6ab311fa-0d0a-4bd6-996e-4ae721377fb2\", \n \"providers\": [\n {\n \"providerLabel\": \"Google\",\n \"providerName\": \"google\",\n \"config\": {\n \"clientID\": \"ATTACKER_MALICIOUS_CLIENT_ID\",\n \"clientSecret\": \"ATTACKER_MALICIOUS_SECRET\"\n },\n \"status\": \"enable\"\n }\n ]\n}\n```\n\n**Response**: The server responds with 200 OK, confirming the modification has been applied to the victim's organization context.\n\n```json\n{\n \"status\": \"OK\",\n \"organizationId\": \"bd2b74e0-e0cd-4bb5-ba98-3cc2ae683d5d\"\n}\n```\n\n### Impact\n\n- **Account Takeover**: An attacker can replace a victim organization's legitimate OAuth credentials (e.g., Google Client ID) with their own malicious application credentials. When victim employees try to log in via SSO, they are authenticated against the attacker's application, potentially allowing the attacker to hijack sessions or steal credentials.\n- **License Control Bypass**: Users on the \"Free\" tier can illicitly enable and configure SSO providers (Azure, Okta, etc.), which are features strictly restricted to the \"Enterprise\" plan.", "title": "github - https://api.github.com/advisories/GHSA-cwc3-p92j-g7qm" }, { "category": "other", "text": "0.00018", "title": "EPSS" }, { "category": "other", "text": "4.0", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is exploit data available from source Nvd, Is related to (a version of) an uncommon product", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5766734", "CSAFPID-5767907", "CSAFPID-5768607" ] }, "references": [ { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0626.json" }, { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-cwc3-p92j-g7qm" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-cwc3-p92j-g7qm" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/npm%2FGHSA-cwc3-p92j-g7qm.json?alt=media" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-30823" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/30xxx/CVE-2026-30823.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30823" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-30823" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-30823" }, { "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-cwc3-p92j-g7qm" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0626.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0626" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-5f53-522j-j454" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; github; nvd; osv", "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-cwc3-p92j-g7qm" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-j8g8-j7fc-43v6" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-jc5m-wrp2-qq38" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-mq4r-h2gh-qv7x" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-wvhq-wp8g-c7vq" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x2g5-fvc2-gqvp" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-cwc3-p92j-g7qm" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.13" }, { "category": "external", "summary": "Reference - github; osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30823" } ], "scores": [ { "cvss_v3": { "version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-5766734", "CSAFPID-5767907", "CSAFPID-5768607" ] } ], "title": "CVE-2026-30823" } ] }