CVE-2026-63295

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 59/100
Published: 2026-08-12 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass project-level container isolation restrictions. When a project is configured with restrictions on container privileges (such as enforcing restricted.containers.privilege=isolated), LXD fails to enforce the requirement if an instance configuration omits the security.idmap.isolated key. An attacker can exploit this flaw by creating or updating an instance without explicitly setting security.idmap.isolated, bypassing the target project's security constraints.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
canonical lxd 4.0.0 – 4.0.12

References & Advisories (1)

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

4.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploitation Probability

0.35%
Raw Score 0.003490
Percentile 28.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00349
2026-10-28
0.00349

Intelligence Sources

nvd ref →