Red Hat Security Advisory: udisks2 security update
The Udisks project provides a daemon, tools, and libraries to access and manipulate disks, storage devices, and technologies. Security Fix(es): * udisks: Missing Authorization Check Allows Unprivileged Users to Back Up LUKS Headers via udisks D-Bus API (CVE-2026-26104) * udisks: Missing Authorization Check Allows Unprivileged Users to Restore LUKS Headers via udisks D-Bus API (CVE-2026-26103) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The Udisks project provides a daemon, tools, and libraries for disk and storage device management. Two vulnerabilities (CVE-2026-26103 and CVE-2026-26104) involve missing authorization checks in the udisks D-Bus API, allowing unprivileged users to back up and restore LUKS headers without proper permissions. These issues affect Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder variants on multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has issued security advisories and updates to fix these vulnerabilities.
Potential Impact
Unprivileged users can exploit these vulnerabilities to back up and restore LUKS encryption headers without authorization, potentially compromising disk encryption integrity. This could lead to unauthorized manipulation of encrypted storage volumes. The vulnerabilities are rated with a security impact of Important by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated udisks2 packages that fix these authorization bypass vulnerabilities. Users should apply the security update for Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder packages as described in Red Hat advisory RHSA-2026:5831. No additional mitigations are indicated by the vendor.
Red Hat Security Advisory: udisks2 security update
Description
The Udisks project provides a daemon, tools, and libraries to access and manipulate disks, storage devices, and technologies. Security Fix(es): * udisks: Missing Authorization Check Allows Unprivileged Users to Back Up LUKS Headers via udisks D-Bus API (CVE-2026-26104) * udisks: Missing Authorization Check Allows Unprivileged Users to Restore LUKS Headers via udisks D-Bus API (CVE-2026-26103) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Udisks project provides a daemon, tools, and libraries for disk and storage device management. Two vulnerabilities (CVE-2026-26103 and CVE-2026-26104) involve missing authorization checks in the udisks D-Bus API, allowing unprivileged users to back up and restore LUKS headers without proper permissions. These issues affect Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder variants on multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has issued security advisories and updates to fix these vulnerabilities.
Potential Impact
Unprivileged users can exploit these vulnerabilities to back up and restore LUKS encryption headers without authorization, potentially compromising disk encryption integrity. This could lead to unauthorized manipulation of encrypted storage volumes. The vulnerabilities are rated with a security impact of Important by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated udisks2 packages that fix these authorization bypass vulnerabilities. Users should apply the security update for Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder packages as described in Red Hat advisory RHSA-2026:5831. No additional mitigations are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:5831
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-26104"]
- Cvss Version
- null
Threat ID: 6a3da1c14853345fc181dd13
Added to database: 06/25/2026, 21:46:41 UTC
Last enriched: 07/12/2026, 10:03:32 UTC
Last updated: 07/31/2026, 19:24:49 UTC
Views: 15
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