{"answers":{"affected":"2 open source packages ship an affected version, including n8n. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-21893 in the wild and no public exploit code.","fix":"Upgrade n8n to 1.120.3 or later.","what":"CVE-2026-21893 is a critical command injection vulnerability in N8n N8n, published on 4 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-21893 and fix it if it is affected.\n\nWhat it is: CVE-2026-21893 is a critical command injection vulnerability in N8n N8n, published on 4 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-21893 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- n8n (npm): affected from 0.187.0; fixed in 1.120.3\n- n8n (npm): affected from 0.187.0; fixed in 1.120.3\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-2026-21893/ (Markdown: https://insights.sbomify.com/CVE-2026-21893/index.md)","id":"CVE-2026-21893","markdown":"https://insights.sbomify.com/CVE-2026-21893/index.md","name":"CVE-2026-21893","record":{"aliases":["GHSA-7c4h-vh2m-743m"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"workflow automation platform","requires_auth":"high_privilege","summary":"Authenticated administrators can execute arbitrary system commands on the host via community package installation in n8n.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"n8n","vendor":"n8n"}],"cvss":{"score":9.4,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"n8n is an open source workflow automation platform. From version 0.187.0 to before 1.120.3, a command injection vulnerability was identified in n8n’s community package installation functionality. The issue allowed authenticated users with administrative permissions to execute arbitrary system commands on the n8n host under specific conditions. This issue has been patched in version 1.120.3.","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 Vulnerable to Command Injection in Community Package Installation","id":"CVE-2026-21893","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"n8n:n8n","products":["n8n:n8n"],"type":"command_injection","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"n8n's Missing Stripe-Signature Verification Allows Unauthenticated Forged Webhooks","id":"CVE-2026-21894"},"packages":[{"ecosystem":"npm","fixed":["1.120.3"],"introduced":["0.187.0"],"last_affected":[],"package":"n8n","purl":null,"source":"GHSA-7c4h-vh2m-743m"},{"ecosystem":"npm","fixed":["1.120.3"],"introduced":["0.187.0"],"last_affected":[],"package":"n8n","purl":"pkg:npm/n8n","source":"GHSA-7c4h-vh2m-743m"}],"prev":{"headline":"Parsl Monitoring Visualization Vulnerable to SQL Injection","id":"CVE-2026-21892"},"products":["n8n"],"published":"2026-02-04","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":"total"},"state":"PUBLISHED","updated":"2026-02-04","vendors":["n8n-io"]},"summary":"Authenticated administrators can execute arbitrary system commands on the host via community package installation in n8n.","url":"https://insights.sbomify.com/CVE-2026-21893/"}