Nixpkgs security tracker
NIXPKGS-2026-0383
GitHub issue
published on
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CVE-2026-26104
5.5 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): None (N)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): None (N)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse ignored package deepin.udisks2-qt5
- @LeSuisse accepted
- @LeSuisse published on GitHub
Udisks: missing authorization check allows unprivileged users to back up luks headers via udisks d-bus api
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.
References
Affected products
udisks
udisks2
Matching in nixpkgs
pkgs.udisks
Daemon, tools and libraries to access and manipulate disks, storage devices and technologies
Ignored packages (1)
pkgs.deepin.udisks2-qt5
UDisks2 D-Bus interfaces binding for Qt5
Package maintainers
-
@JohnAZoidberg Daniel Schäfer <git@danielschaefer.me>
-
@jtojnar Jan Tojnar <jtojnar@gmail.com>