{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109356 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109356 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109356 is a medium-severity missing authorization vulnerability in librenms, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-109356 and fix it if it is affected.\n\nWhat it is: CVE-2026-109356 is a medium-severity missing authorization vulnerability in librenms, published on 12 Oct 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-2026-109356 in the wild and no public exploit code.\n\nAffected product: librenms. 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-2026-109356/ (Markdown: https://insights.sbomify.com/CVE-2026-109356/index.md)","id":"CVE-2026-109356","markdown":"https://insights.sbomify.com/CVE-2026-109356/index.md","name":"CVE-2026-109356","record":{"aliases":["GHSA-9qcg-rgg9-mpjg","GHSA-h6hv-5g7p-j2pv"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Network monitoring system","requires_auth":"low_privilege","summary":"Read-only users can delete all ports on visible devices due to missing authorization checks in the PortsController purge function.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"LibreNMS before 26.9.0 contains a missing authorization vulnerability in PortsController::purge that allows global-read users to physically delete ports without delete privileges. Attackers with read-only accounts can send DELETE requests to /ports/purge, using purge=all to irreversibly erase every deleted port on all visible devices.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"LibreNMS before 26.9.0 Missing Authorization in Port Purge via PortsController","id":"CVE-2026-109356","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"LibreNMS before 26.9.0 LDAP Filter Injection Authentication Bypass via Authorization Header","id":"CVE-2026-109357"},"packages":[],"prev":{"headline":"LibreNMS before 26.9.0 Stored XSS via Tools Oxidized Node List","id":"CVE-2026-109355"},"products":["librenms"],"published":"2026-10-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-10-26","vendors":["librenms"]},"summary":"Read-only users can delete all ports on visible devices due to missing authorization checks in the PortsController purge function.","url":"https://insights.sbomify.com/CVE-2026-109356/"}