CVE-2026-26103

HIGH
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-02-25 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: High
A: High

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
freedesktop udisks 2.0.0
redhat enterprise_linux 10.0

Bug Bounty Relevance

39 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS — Exploitation Probability

0.08%
Raw Score 0.000820
Percentile 0.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00082
2026-11-12
0.00082
2026-11-10
0.00082
2026-11-09
0.00082
2026-11-08
0.00082
2026-11-07
0.00082
2026-11-06
0.00082
2026-11-05
0.00082
2026-11-04
0.00082

Intelligence Sources

mitre ref →
nvd ref →