{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109355 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109355 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109355 is a medium-severity cross-site scripting vulnerability in librenms, published on 12 Oct 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-2026-109355 and fix it if it is affected.\n\nWhat it is: CVE-2026-109355 is a medium-severity cross-site scripting vulnerability in librenms, published on 12 Oct 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-2026-109355 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-2026-109355/ (Markdown: https://insights.sbomify.com/CVE-2026-109355/index.md)","id":"CVE-2026-109355","markdown":"https://insights.sbomify.com/CVE-2026-109355/index.md","name":"CVE-2026-109355","record":{"aliases":["GHSA-cjqw-76mh-jmpv","GHSA-m63v-9j9m-6j88"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Network monitoring system","requires_auth":"none","summary":"Attackers can inject malicious scripts via Oxidized API or SNMP sysName, leading to code execution in victim browsers viewing the Tools Oxidized page.","user_interaction":"required","vuln_class":"xss"},"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:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"LibreNMS before 26.9.0 contains a stored cross-site scripting vulnerability in get_oxidized_nodes_list() that renders Oxidized API fields and SNMP sysName unescaped. Attackers controlling the Oxidized response or a device's SNMP sysName can inject script that executes in browsers of users viewing the Tools Oxidized page.","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 Stored XSS via Tools Oxidized Node List","id":"CVE-2026-109355","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"LibreNMS before 26.9.0 Missing Authorization in Port Purge via PortsController","id":"CVE-2026-109356"},"packages":[],"prev":{"headline":"LibreNMS before 26.9.0 Path Traversal via NFSen channel Parameter","id":"CVE-2026-109354"},"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":"2026-10-13","vendors":["librenms"]},"summary":"Attackers can inject malicious scripts via Oxidized API or SNMP sysName, leading to code execution in victim browsers viewing the Tools Oxidized page.","url":"https://insights.sbomify.com/CVE-2026-109355/"}