{"action":"Upgrade librenms/librenms to 26.2.0 or later.","affected":[{"fixed":"26.2.0","introduced":"0"}],"component":"librenms/librenms","cve_ids":["CVE-2026-26991"],"ecosystem":"Packagist","epss":0.0025,"exploited":false,"fixed_versions":["26.2.0"],"ghsa_id":"GHSA-5pqf-54qp-32wx","id":"tcs_01M5KEW951QE6SZA7C03JCXPVG","modified_at":"2026-02-22T23:22:01.964694Z","published_at":"2026-02-18T22:07:19Z","references":["https://osv.dev/vulnerability/GHSA-5pqf-54qp-32wx","https://github.com/librenms/librenms/security/advisories/GHSA-5pqf-54qp-32wx","https://nvd.nist.gov/vuln/detail/CVE-2026-26991","https://github.com/librenms/librenms/pull/19041","https://github.com/librenms/librenms/commit/64b31da444369213eb4559ec1c304ebfaa0ba12c","https://github.com/librenms/librenms","https://github.com/librenms/librenms/releases/tag/26.2.0"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-5pqf-54qp-32wx","url":"https://osv.dev/vulnerability/GHSA-5pqf-54qp-32wx"}],"summary":"LibreNMS /device-groups name Stored Cross-Site Scripting"}