{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/cpes/cpe2.3asambasamba/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":["cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*"],"_cs_cves":[{"id":"CVE-2026-109411"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Samba (vfs_ceph_rgw module enabled)"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":["Samba"],"content_html":"\u003cp\u003eCVE-2026-109411 is an access control bypass vulnerability located in the \u003ccode\u003eopenat()\u003c/code\u003e function of Samba's experimental \u003ccode\u003evfs_ceph_rgw\u003c/code\u003e module. An authenticated attacker can exploit the module's failure to correctly handle case-insensitive file lookups. By requesting an existing file with mismatched character casing, the module bypasses standard permission checks, treating the request as a new file creation. This allows the attacker to read or overwrite files that would otherwise be restricted.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eAuthenticated attackers with access to a share configured with the \u003ccode\u003evfs_ceph_rgw\u003c/code\u003e module can read or overwrite sensitive files owned by other users, leading to potential data exposure or file corruption.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAudit Samba configurations to identify if the experimental \u003ccode\u003evfs_ceph_rgw\u003c/code\u003e module is currently enabled in production environments.\u003c/li\u003e\n\u003cli\u003eDisable the \u003ccode\u003evfs_ceph_rgw\u003c/code\u003e module if it is not strictly required for operations until a vendor-supplied patch is applied.\u003c/li\u003e\n\u003cli\u003eMonitor Samba access logs for unusual patterns of file access requests involving case-sensitive/insensitive variations for the same file path.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-10-28T20:39:14Z","date_published":"2026-10-28T20:39:14Z","id":"https://feed.craftedsignal.io/briefs/2026-10-samba-vfs-ceph-rgw-bypass/","summary":"An access control bypass vulnerability in the Samba vfs_ceph_rgw module allows an authenticated attacker to read or overwrite restricted files via case-mismatched file lookups.","title":"Samba: Access control bypass in vfs_ceph_rgw module (CVE-2026-109411)","url":"https://feed.craftedsignal.io/briefs/2026-10-samba-vfs-ceph-rgw-bypass/"}],"language":"en","title":"CraftedSignal Threat Feed - Cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*","version":"https://jsonfeed.org/version/1.1"}