CVE-2026-26104— Udisks: missing authorization check allows unprivileged users to back up luks headers via udisks d-bus api
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I. Basic Information for CVE-2026-26104
Vulnerability Information
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Vulnerability Title
Udisks: missing authorization check allows unprivileged users to back up luks headers via udisks d-bus api
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform a policy check. As a result, sensitive cryptographic metadata can be read and written to attacker-controlled locations. This weakens the confidentiality guarantees of encrypted storage volumes.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
udisks 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
udisks是storaged-project开源的一款用于查询和管理存储设备的守护程序。 udisks存在安全漏洞，该漏洞源于特权D-Bus方法缺少策略检查，可能导致非特权用户备份LUKS加密头，削弱存储卷的机密性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 0:2.10.90-6.el10_1.1 ~ * | cpe:/o:redhat:enterprise_linux:10.1 | |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:2.10.90-5.el10_0.2 ~ * | cpe:/o:redhat:enterprise_linux_eus:10.0 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 |
II. Public POCs for CVE-2026-26104
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|---|
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Same Patch Batch · Red Hat · 2026-02-25 · 3 CVEs total
| CVE-2026-26103 | 7.1 HIGH | Udisks: missing authorization check allows unprivileged users to restore luks headers via |
| CVE-2026-3118 | 6.5 MEDIUM | Rhdh: graphql injection leading to platform-wide denial of service (dos) in rh developer h |
IV. Related Vulnerabilities
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Same vendor: Red Hat
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V. Comments for CVE-2026-26104
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