{"id":"CVE-2026-18792","aliases":["EUVD-2026-124181","GHSA-xjfw-3qw5-345q"],"status":"published","title":"An improper limitation of a pathname to a restricted directory vulnerability in the Sharing API...","description":"An improper limitation of a pathname to a restricted directory vulnerability in the Sharing API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00919,"percentile":0.60806,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-11-12T03:32:22Z","modified":"2026-11-12T06:30:29Z","products":[{"vendor":"synology","product":"diskstation manager (dsm)"}],"references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_26_18"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18792"},{"url":"https://github.com/advisories/GHSA-xjfw-3qw5-345q"}],"sources":{"cve":[{"id":"CVE-2026-18792","description":"An improper limitation of a pathname to a restricted directory vulnerability in the Sharing API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T03:32:22.372Z","modified":"2026-11-12T03:32:22.372Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-12T04:37:17.913628Z"}],"euvd":[{"id":"EUVD-2026-124181","description":"An improper limitation of a pathname to a restricted directory vulnerability in the Sharing API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T03:32:22Z","modified":"2026-11-12T03:32:22Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-12T08:32:31.16979Z"}],"ghsa":[{"id":"GHSA-xjfw-3qw5-345q","title":"An improper limitation of a pathname to a restricted directory vulnerability in the Sharing API...","description":"An improper limitation of a pathname to a restricted directory vulnerability in the Sharing API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T06:30:21Z","modified":"2026-11-12T06:30:29Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-12T06:38:20.494135Z"}],"nvd":[{"id":"CVE-2026-18792","description":"An improper limitation of a pathname to a restricted directory vulnerability in the Sharing API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T04:17:19.127Z","modified":"2026-11-12T18:50:59.773Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-12T06:28:14.789027Z"}]}}