{ "document": { "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "nl", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n NCSC-NL makes every reasonable effort to ensure that the content of this page 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 continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n NCSC-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 this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." }, { "category": "description", "text": "n8n heeft meerdere kwetsbaarheden verholpen in het n8n workflow automation platform.", "title": "Feiten" }, { "category": "description", "text": "De kwetsbaarheden betreffen onder andere:\n- Een autorisatieprobleem waarbij geauthenticeerde gebruikers workflows kunnen toewijzen aan mappen binnen projecten waar zij geen toegang toe hebben, door onvoldoende validatie van request payloads tijdens workflow creatie.\n- Een SQL-injectie in de legacy MySQL v1 node executeQuery operatie door onparameteriseerde expressie substitutie, wat het uitvoeren van willekeurige SQL statements toestaat.\n- Verder kunnen geauthenticeerde gebruikers met de workflow:create permissie Object.prototype pollution veroorzaken via speciaal opgezette workflows, wat leidt tot ongeautoriseerde toegang tot privileged endpoints.\n- Een andere kwetsbaarheid betreft het omzeilen van HTTP request domeinrestricties in de AI Agents functionaliteit door gebruikers met member-level permissies, wat kan resulteren in blootstelling van gedeelde credential secrets aan externe servers.\n- Ook is er een probleem met onjuiste validatie van meerdere trusted token-exchange issuers, waardoor impersonatie van gebruikers over verschillende token issuers mogelijk is.\n- Ten slotte kunnen gebruikers met editor toegang via HTTP Request node pagination expressies gevoelige credential data exfiltreren.\n\nDeze kwetsbaarheden zijn aanwezig in verschillende versies van n8n en hebben betrekking op autorisatie, authenticatie, data-integriteit en vertrouwelijkheid binnen het platform.", "title": "Interpretaties" }, { "category": "description", "text": "n8n heeft updates uitgebracht in versies 1.123.61, 2.27.4 en 2.28.1 om deze kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.", "title": "Oplossingen" }, { "category": "general", "text": "medium", "title": "Kans" }, { "category": "general", "text": "high", "title": "Schade" }, { "category": "general", "text": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')", "title": "CWE-89" }, { "category": "general", "text": "Exposure of Sensitive Information to an Unauthorized Actor", "title": "CWE-200" }, { "category": "general", "text": "Improper Authentication", "title": "CWE-287" }, { "category": "general", "text": "Origin Validation Error", "title": "CWE-346" }, { "category": "general", "text": "Insufficiently Protected Credentials", "title": "CWE-522" }, { "category": "general", "text": "Authorization Bypass Through User-Controlled Key", "title": "CWE-639" }, { "category": "general", "text": "Protection Mechanism Failure", "title": "CWE-693" }, { "category": "general", "text": "Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "title": "CWE-1321" } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "Nationaal Cyber Security Centrum", "namespace": "https://www.ncsc.nl/" }, "references": [ { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-2434-3x6q-8r99" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-2xgm-wc4g-5jvg" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-75qm-gp28-rcq9" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-h44j-f5r5-ph73" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-hwmj-qg4v-cvg9" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-jp7m-xcgx-57qm" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-mq3m-f8x3-579w" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-q3j5-8vrg-4p9q" }, { "category": "external", "summary": "Reference", "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-w867-jm58-p9pv" } ], "title": "Kwetsbaarheden verholpen in n8n workflow automation platform", "tracking": { "current_release_date": "2026-07-13T09:26:06.594555Z", "generator": { "date": "2025-08-04T16:30:00Z", "engine": { "name": "V.A.", "version": "1.3" } }, "id": "NCSC-2026-0228", "initial_release_date": "2026-07-13T09:26:06.594555Z", "revision_history": [ { "date": "2026-07-13T09:26:06.594555Z", "number": "1.0.0", "summary": "Initiele versie" } ], "status": "final", "version": "1.0.0" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-1" } } ], "category": "product_name", "name": "n8n" } ], "category": "vendor", "name": "n8n" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-59253", "cwe": { "id": "CWE-639", "name": "Authorization Bypass Through User-Controlled Key" }, "notes": [ { "category": "other", "text": "Authorization Bypass Through User-Controlled Key", "title": "CWE-639" }, { "category": "description", "text": "n8n versions prior to 2.28.0 contain an authorization vulnerability allowing authenticated users to assign workflows to folders in other projects, bypassing project and folder authorization controls via manipulated request payloads during workflow creation.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/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" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59253 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59253.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N", "baseScore": 5.0, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1" ] } ], "title": "CVE-2026-59253" }, { "cve": "CVE-2026-59257", "cwe": { "id": "CWE-89", "name": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')" }, "notes": [ { "category": "other", "text": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')", "title": "CWE-89" }, { "category": "description", "text": "n8n versions prior to 1.123.61, 2.27.4, and 2.28.1 contain a SQL injection vulnerability in the legacy MySQL v1 node's executeQuery operation due to unparameterized expression substitution, while the MySQL v2 node remains unaffected.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N", "title": "CVSSV4" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59257 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59257.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1" ] } ], "title": "CVE-2026-59257" }, { "cve": "CVE-2026-59206", "cwe": { "id": "CWE-1321", "name": "Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')" }, "notes": [ { "category": "other", "text": "Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "title": "CWE-1321" }, { "category": "description", "text": "n8n versions prior to 1.123.61, 2.27.4, and 2.28.1 contained an Object.prototype pollution vulnerability exploitable by authenticated users with workflow:create permission, allowing unauthorized access to privileged endpoints.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N", "title": "CVSSV4" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59206 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59206.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L", "baseScore": 7.1, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1" ] } ], "title": "CVE-2026-59206" }, { "cve": "CVE-2026-59207", "notes": [ { "category": "description", "text": "n8n versions 2.27.4 and 2.28.1 contained a security vulnerability in the AI Agents feature that allowed member-level users to bypass HTTP request domain restrictions and potentially expose shared credential secrets to external servers.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N", "title": "CVSSV4" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59207 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59207.json" } ], "scores": [ { "cvss_v3": { "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" }, "products": [ "CSAFPID-1" ] } ], "title": "CVE-2026-59207" }, { "cve": "CVE-2026-59208", "cwe": { "id": "CWE-346", "name": "Origin Validation Error" }, "notes": [ { "category": "other", "text": "Origin Validation Error", "title": "CWE-346" }, { "category": "description", "text": "n8n versions prior to 2.27.4 and between 2.28.0 and 2.28.1 contained a security vulnerability where multiple trusted token-exchange issuers were not properly validated, enabling user impersonation across issuers, fixed in versions 2.27.4 and 2.28.1.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "title": "CVSSV4" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59208 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59208.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "baseScore": 6.8, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1" ] } ], "title": "CVE-2026-59208" }, { "cve": "CVE-2026-59209", "cwe": { "id": "CWE-522", "name": "Insufficiently Protected Credentials" }, "notes": [ { "category": "other", "text": "Insufficiently Protected Credentials", "title": "CWE-522" }, { "category": "description", "text": "n8n versions prior to 1.123.61, 2.27.4, and 2.28.1 contained a vulnerability allowing authenticated users with editor access to exfiltrate credential data via HTTP Request node pagination expressions, which has been addressed in these releases.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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", "title": "CVSSV4" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59209 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59209.json" } ], "title": "CVE-2026-59209" } ] }