{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-11420 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-11420 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-11420 is a critical path traversal vulnerability in Altium Enterprise Server, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-11420 and fix it if it is affected.\n\nWhat it is: CVE-2026-11420 is a critical path traversal vulnerability in Altium Enterprise Server, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-11420 in the wild and no public exploit code.\n\nAffected product: Altium Enterprise Server. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-11420/ (Markdown: https://insights.sbomify.com/CVE-2026-11420/index.md)","id":"CVE-2026-11420","markdown":"https://insights.sbomify.com/CVE-2026-11420/index.md","name":"CVE-2026-11420","record":{"aliases":["GHSA-q58x-mgvc-jhw9"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Altium Enterprise Server","requires_auth":"none","summary":"Unauthenticated attackers can exploit path traversal in Altium Enterprise Server to write arbitrary files and read archives, potentially achieving remote code execution.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Altium","cpe":[{"product":"on-prem_enterprise_server","vendor":"altium"}],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"},{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Two path traversal vulnerabilities in the Network Installation Service (NIS) of Altium Enterprise Server allow an unauthenticated network attacker to write arbitrary files to any writable location on the server filesystem and to read package archive files from the server. No authentication, session, or credentials are required.\n\nBecause content-controlled files can be written to web-accessible directories, or used to overwrite application binaries or configuration files, exploitation can be escalated to remote code execution in the context of the service account, and can disclose deployment package contents. Altium 365 cloud deployments are not affected, as the Network Installation Service is not part of the cloud offering.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Path Traversal in Altium Enterprise Server NIS Allows Unauthenticated Arbitrary File Write and File Read","id":"CVE-2026-11420","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"SQL injection in ERP: Complete HR, Accounting \u0026 CRM Suite Built for WooCommerce","id":"CVE-2026-11421"},"packages":[],"prev":{"headline":"Path Traversal in Altium Enterprise Server Vault UploadController Allows Arbitrary File Write","id":"CVE-2026-11419"},"products":["Altium Enterprise Server"],"published":"2026-06-05","related":[{"cvss_score":10,"headline":"Hardcoded credentials in Altium Enterprise Server","id":"CVE-2026-11414","kev_date_added":null,"published":"2026-06-05"},{"cvss_score":9.4,"headline":"Path Traversal in Altium Enterprise Server Vault UploadController Allows Arbitrary File Write","id":"CVE-2026-11419","kev_date_added":null,"published":"2026-06-05"},{"cvss_score":8.6,"headline":"SQL Injection in AES Due to Inactive SQL Parsing Configuration","id":"CVE-2025-27378","kev_date_added":null,"published":"2026-01-22"},{"cvss_score":8,"headline":"Stored Cross-Site Scripting in Altium Enterprise Server Workflow Engine Allows Privilege Escalation","id":"CVE-2026-1010","kev_date_added":null,"published":"2026-01-15"},{"cvss_score":7.6,"headline":"HTML Injection Leading to Script Execution in Altium Enterprise Server","id":"CVE-2025-27380","kev_date_added":null,"published":"2026-01-22"},{"cvss_score":6.8,"headline":"Stored Cross-Site Scripting in AES BOM Viewer","id":"CVE-2025-27379","kev_date_added":null,"published":"2026-01-22"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-05","vendors":["Altium"]},"summary":"Unauthenticated attackers can exploit path traversal in Altium Enterprise Server to write arbitrary files and read archives, potentially achieving remote code execution.","url":"https://insights.sbomify.com/CVE-2026-11420/"}