CVE-2026-26104

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 100:2.10.90-6.el10_1.1 < *unaffected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0:2.10.90-5.el10_0.2 < *unaffected

Weaknesses

  • CWE-862: Missing Authorization

Workarounds

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.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References