{"answers":{"affected":"4 open source packages ship an affected version, including n8n. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-86073 in the wild and no public exploit code.","fix":"Upgrade n8n to a fixed version for your release line: 2.37.7 or 2.38.1.","what":"CVE-2026-86073 is a medium-severity authentication bypass vulnerability in N8n N8n, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-86073 and fix it if it is affected.\n\nWhat it is: CVE-2026-86073 is a medium-severity authentication bypass vulnerability in N8n N8n, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-86073 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- n8n (npm): affected all versions; fixed in 2.37.7\n- n8n (npm): affected all versions; fixed in 2.37.7\n- n8n (npm): affected from 2.38.0; fixed in 2.38.1\n- n8n (npm): affected from 2.38.0; fixed in 2.38.1\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-2026-86073/ (Markdown: https://insights.sbomify.com/CVE-2026-86073/index.md)","id":"CVE-2026-86073","markdown":"https://insights.sbomify.com/CVE-2026-86073/index.md","name":"CVE-2026-86073","record":{"aliases":["GHSA-cw9w-vv67-hf73","MINI-vrxw-cgwf-7h86"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"workflow automation platform","requires_auth":"none","summary":"Attackers can bypass OAuth consent checks to access unauthorized workflows by substituting resource parameters during token refresh.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"n8n","vendor":"n8n"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.1, the OAuth token endpoint bound an authorization code's first access token to the consented resource but did not bind its refresh token. Refreshing checked only that the requested resource was registered, not that it matched the original grant. An OAuth client approved for one workflow could substitute a different workflow URL in the resource parameter and obtain a valid token for an unapproved workflow accessible to the consenting user. This issue is fixed in versions 2.37.7 and 2.38.1.","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: Per-Resource OAuth Consent Bypass via Unbound Refresh Token Resource Substitution","id":"CVE-2026-86073","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"n8n:n8n","products":["n8n:n8n"],"type":"auth_bypass","year":"2026"},"n_packages":4,"n_references":7,"next":{"headline":"n8n: Instance AI Credential Setup Accepts Unvalidated Probe URL from Fetched Content","id":"CVE-2026-86074"},"packages":[{"ecosystem":"npm","fixed":["2.37.7"],"introduced":["0"],"last_affected":[],"package":"n8n","purl":null,"source":"GHSA-cw9w-vv67-hf73"},{"ecosystem":"npm","fixed":["2.37.7"],"introduced":["0"],"last_affected":[],"package":"n8n","purl":"pkg:npm/n8n","source":"GHSA-cw9w-vv67-hf73"},{"ecosystem":"npm","fixed":["2.38.1"],"introduced":["2.38.0"],"last_affected":[],"package":"n8n","purl":null,"source":"GHSA-cw9w-vv67-hf73"},{"ecosystem":"npm","fixed":["2.38.1"],"introduced":["2.38.0"],"last_affected":[],"package":"n8n","purl":"pkg:npm/n8n","source":"GHSA-cw9w-vv67-hf73"}],"prev":{"headline":"Junrar: LocalFolderExtractor mkdir escape allows directory creation outside extraction root","id":"CVE-2026-86071"},"products":["n8n"],"published":"2026-09-08","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":"2026-09-09","vendors":["n8n-io"]},"summary":"Attackers can bypass OAuth consent checks to access unauthorized workflows by substituting resource parameters during token refresh.","url":"https://insights.sbomify.com/CVE-2026-86073/"}