{"affected":[{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 10","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:2.10.90-6.el10_1.1","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:2.10.90-5.el10_0.2","versionType":"rpm"}]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks","product":"Red Hat Enterprise Linux 6","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 8","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 9","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 10","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:2.10.90-6.el10_1.1","versionType":"rpm"}]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"0:2.10.90-5.el10_0.2","versionType":"rpm"}]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks","product":"Red Hat Enterprise Linux 6","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 7","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 8","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"udisks2","product":"Red Hat Enterprise Linux 9","source":"ADP: redhat-SADP","vendor":"Red Hat","versions":[]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"},{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:freedesktop:udisks:2.0.0:*:*:*:*:*:*:*","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-26103","cwes":["CWE-862"],"description":"A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to overwrite encryption metadata on block devices. This can permanently invalidate encryption keys and render encrypted volumes inaccessible. Successful exploitation results in a denial-of-service condition through irreversible data loss.","epss":{"date":"2026-11-04","percentile":0.00189,"score":0.00082},"exploits":[],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: redhat","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},{"score":7.1,"severity":"high","source":"ADP: redhat-SADP","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},{"score":7.1,"severity":"high","source":"NVD: secalert@redhat.com","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},{"score":7.1,"severity":"high","source":"NVD: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"}],"modifiedAt":1793834245630,"publishedAt":1772015510913,"references":[{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:3476"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:5831"},{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-26103"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433719"},{"source":"CNA: redhat","tags":[],"url":"https://github.com/storaged-project/udisks/security/advisories/GHSA-c75h-phf8-ccjm"},{"source":"ADP: redhat-SADP","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-26103"},{"source":"ADP: redhat-SADP","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433719"},{"source":"ADP: redhat-SADP","tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26103.json"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:5831"},{"source":"ADP: redhat-SADP","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:3476"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2026:3476"},{"source":"secalert@redhat.com","tags":[],"url":"https://access.redhat.com/errata/RHSA-2026:5831"},{"source":"secalert@redhat.com","tags":["Vendor Advisory"],"url":"https://access.redhat.com/security/cve/CVE-2026-26103"},{"source":"secalert@redhat.com","tags":["Issue Tracking","Vendor Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433719"},{"source":"secalert@redhat.com","tags":[],"url":"https://github.com/storaged-project/udisks/security/advisories/GHSA-c75h-phf8-ccjm"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"url":"https://access.redhat.com/errata/RHSA-2026:3476"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"url":"https://access.redhat.com/errata/RHSA-2026:5831"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":["Vendor Advisory"],"url":"https://access.redhat.com/security/cve/CVE-2026-26103"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":["Issue Tracking","Vendor Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433719"},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","tags":[],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26103.json"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to a widespread installation base, or stability."},{"kind":"fix","source":"ADP: redhat-SADP","text":"RHSA-2026:5831: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)\n\nRHSA-2026:3476: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"},{"kind":"workaround","source":"ADP: redhat-SADP","text":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to a widespread installation base, or stability."}],"revision":"5b26844d01046a56402f34ed0fcb9f50a2eb70cb199cffb2618f7d6e4a7f5780","sources":[{"modifiedAt":1793830530111,"name":"CNA: redhat","retrievedAt":1793833810820,"url":"https://www.cve.org/CVERecord?id=CVE-2026-26103"},{"modifiedAt":1793834245630,"name":"NVD","retrievedAt":1793837957399,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26103"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793833837619,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-26103"}],"ssvc":{"assessedAt":1772053375684,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Udisks: missing authorization check allows unprivileged users to restore luks headers via udisks d-bus api","updatedAt":1793837957399}