{"id":"CVE-2026-111581","aliases":["AZL-109733","DEBIAN-CVE-2026-111581","EUVD-2026-102935","GHSA-frq2-q7f6-4x3m","UBUNTU-CVE-2026-111581","openSUSE-SU-2026:12462-1"],"status":"published","title":"Libblockdev: libblockdev: argument injection in ntfs/vfat label-setting helpers via udisks2 setlabel() d-bus method","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","severity":{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00126,"percentile":0.02357,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-88"],"published":"2026-10-16T15:42:04Z","modified":"2026-11-07T17:23:17Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"libblockdev","fixed_in":["3.5.0-2.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.2.0-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.28-2","2.28-2+deb12u1","3.0-1","3.0-2","3.0.1-1","3.0.1-2","3.0.2-1","3.0.2-2","3.0.2-3","3.0.3-1","3.0.4-1","3.1.0-1","3.1.1-1","3.1.1-2","3.2.0-1","3.2.0-2","3.2.1-1","3.3.0-1","3.3.0-2","3.3.0-2.1","3.3.1-1","3.3.1-2","3.3.1-3","3.4.0-1","3.4.0-2","3.5.0-1","3.5.0-2"]},{"source":"osv","ecosystem":"Debian:13","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.0-2.1","3.3.1-1","3.3.1-2","3.3.1-3","3.4.0-1","3.4.0-2","3.5.0-1","3.5.0-2"]},{"source":"osv","ecosystem":"Debian:14","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.0-2.1","3.3.1-1","3.3.1-2","3.3.1-3","3.4.0-1","3.4.0-2","3.5.0-1","3.5.0-2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12-2","2.12-3","2.14-2","2.14-3","2.16-2","2.16-2ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.22-1","2.23-2","2.23-2ubuntu2","2.23-2ubuntu3","2.23-2ubuntu3+esm1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.25-2build1","2.26-1","2.26-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.3-1","3.0.4-1","3.1.0-1","3.1.0-1build1","3.1.1-1","3.1.1-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.0-1","3.5.0-1","3.5.0-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.0-2.1","3.4.0-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"libblockdev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.0-2.1"}]}]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-111581","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2554104","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111581","tags":["web"]},{"url":"https://github.com/advisories/GHSA-frq2-q7f6-4x3m"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-111581","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-111581","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-111581","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-111581","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-111581","title":"Libblockdev: libblockdev: argument injection in ntfs/vfat label-setting helpers via udisks2 setlabel() d-bus method","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","status":"published","published":"2026-10-16T15:42:04.58Z","modified":"2026-11-06T17:52:01.795Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-88"],"updated_at":"2026-11-06T18:59:07.714367Z"}],"euvd":[{"id":"EUVD-2026-102935","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","status":"published","published":"2026-10-16T15:42:04Z","modified":"2026-11-06T17:52:01Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-06T19:05:53.354277Z"}],"ghsa":[{"id":"GHSA-frq2-q7f6-4x3m","title":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions...","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","status":"published","published":"2026-10-16T18:34:39Z","modified":"2026-10-16T18:34:40Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-88"],"updated_at":"2026-11-02T15:13:52.326136Z"}],"nvd":[{"id":"CVE-2026-111581","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","status":"published","published":"2026-10-16T16:17:04.68Z","modified":"2026-11-06T18:17:44.81Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-88"],"updated_at":"2026-11-06T20:01:14.236499Z"}],"osv":[{"id":"DEBIAN-CVE-2026-111581","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","status":"published","published":"2026-10-16T16:17:04.68Z","modified":"2026-11-07T09:47:34.400790304Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-07T10:14:39.995311Z"},{"id":"UBUNTU-CVE-2026-111581","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","status":"published","published":"2026-10-16T16:17:00Z","modified":"2026-10-28T20:17:44.017527326Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-02T16:55:59.591851Z"},{"id":"AZL-109733","title":"CVE-2026-111581 affecting package libblockdev 3.2.0-1","description":"A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.","status":"published","published":"2026-10-16T16:17:04Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:18.42484Z"},{"id":"openSUSE-SU-2026:12462-1","title":"libbd_btrfs-devel-3.5.0-2.1 on GA media","description":"These are all security issues fixed in the libbd_btrfs-devel-3.5.0-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-11-06T00:00:00Z","modified":"2026-11-07T17:23:17.683920541Z","updated_at":"2026-11-07T17:50:39.727056Z"}]}}