{"answers":{"affected":"6 open source packages ship an affected version, including n8n. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-59259 in the wild and no public exploit code.","fix":"Upgrade n8n to a fixed version for your release line: 1.123.61, 2.27.4 or 2.28.1.","what":"CVE-2026-59259 is a medium-severity missing authorization vulnerability in N8n N8n, published on 15 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-59259 and fix it if it is affected.\n\nWhat it is: CVE-2026-59259 is a medium-severity missing authorization vulnerability in N8n N8n, published on 15 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-59259 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- n8n (npm): affected all versions; fixed in 1.123.61\n- n8n (npm): affected all versions; fixed in 1.123.61\n- n8n (npm): affected from 2.0.0-rc.0; fixed in 2.27.4\n- n8n (npm): affected from 2.0.0-rc.0; fixed in 2.27.4\n- n8n (npm): affected from 2.28.0; fixed in 2.28.1\n- n8n (npm): affected from 2.28.0; fixed in 2.28.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-59259/ (Markdown: https://insights.sbomify.com/CVE-2026-59259/index.md)","id":"CVE-2026-59259","markdown":"https://insights.sbomify.com/CVE-2026-59259/index.md","name":"CVE-2026-59259","record":{"aliases":["CLEANSTART-2026-RX62233","GHSA-jp7m-xcgx-57qm","MINI-m6cj-3p2g-cpx4"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"n8n workflow automation","requires_auth":"low_privilege","summary":"Authenticated users can bypass permission checks to access external secrets via expression parser mismatches in n8n.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"n8n","vendor":"n8n"}],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"n8n before versions 1.123.61, 2.27.4, and 2.28.1 contains a permission bypass vulnerability in external secrets handling caused by a mismatch between the static validation check and the runtime expression engine. An authenticated user with credential create or update permissions but without the externalSecret:list scope can embed external secret references into credentials in forms the static validation does not detect; these references resolve at workflow execution time, exposing secret values the user is not authorized to access. This issue only affects instances where an external secrets provider is configured and Advanced Permissions are in use.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"n8n - Permission Bypass via Expression Parser Mismatch in External Secrets","id":"CVE-2026-59259","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"n8n:n8n","products":["n8n:n8n"],"type":"missing_authorization","year":"2026"},"n_packages":6,"n_references":2,"next":{"headline":"OpenWrt luci-app-samba4 read ACL remote code execution via smbd","id":"CVE-2026-59260"},"packages":[{"ecosystem":"npm","fixed":["1.123.61"],"introduced":["0"],"last_affected":[],"package":"n8n","purl":null,"source":"GHSA-jp7m-xcgx-57qm"},{"ecosystem":"npm","fixed":["1.123.61"],"introduced":["0"],"last_affected":[],"package":"n8n","purl":"pkg:npm/n8n","source":"GHSA-jp7m-xcgx-57qm"},{"ecosystem":"npm","fixed":["2.27.4"],"introduced":["2.0.0-rc.0"],"last_affected":[],"package":"n8n","purl":null,"source":"GHSA-jp7m-xcgx-57qm"},{"ecosystem":"npm","fixed":["2.27.4"],"introduced":["2.0.0-rc.0"],"last_affected":[],"package":"n8n","purl":"pkg:npm/n8n","source":"GHSA-jp7m-xcgx-57qm"},{"ecosystem":"npm","fixed":["2.28.1"],"introduced":["2.28.0"],"last_affected":[],"package":"n8n","purl":null,"source":"GHSA-jp7m-xcgx-57qm"},{"ecosystem":"npm","fixed":["2.28.1"],"introduced":["2.28.0"],"last_affected":[],"package":"n8n","purl":"pkg:npm/n8n","source":"GHSA-jp7m-xcgx-57qm"}],"prev":{"headline":"immich \u003c 3.0.3 Shared Album Editor Ownership Takeover via updateUser","id":"CVE-2026-59258"},"products":["n8n"],"published":"2026-07-15","related":[{"cvss_score":10,"headline":"n8n Improper Control of Dynamically-Managed Code Resources","id":"CVE-2025-68613","kev_date_added":"2026-03-11","published":"2025-12-19"},{"cvss_score":10,"headline":"n8n is vulnerable to Remote Code Execution via Arbitrary File Write","id":"CVE-2026-21877","kev_date_added":null,"published":"2026-01-08"},{"cvss_score":10,"headline":"n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling","id":"CVE-2026-21858","kev_date_added":null,"published":"2026-01-07"},{"cvss_score":9.9,"headline":"n8n Unsafe Workflow Expression Evaluation Allows Remote Code Execution","id":"CVE-2026-1470","kev_date_added":null,"published":"2026-01-27"},{"cvss_score":9.9,"headline":"n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node","id":"CVE-2025-68668","kev_date_added":null,"published":"2025-12-26"},{"cvss_score":9.5,"headline":"n8n has Unauthenticated Expression Evaluation via Form Node","id":"CVE-2026-27493","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":9.4,"headline":"n8n: HTTP Request Node Pagination Prototype Pollution to RCE","id":"CVE-2026-44789","kev_date_added":null,"published":"2026-06-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["n8n"]},"summary":"Authenticated users can bypass permission checks to access external secrets via expression parser mismatches in n8n.","url":"https://insights.sbomify.com/CVE-2026-59259/"}