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NVD Vulnerability Details :
CVE-2026-28384
Awaiting Analysis
More InfoOfficial Page
Source-security@ubuntu.com
View Known Exploited Vulnerability (KEV) details
Published At-12 Mar, 2026 | 15:16
Updated At-13 Mar, 2026 | 19:54

An improper sanitization of the compression_algorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the snap versions 5.0.6-e49d9f4 (channel 5.0/stable), 5.21.4-1374f39 (channel 5.21/stable), and 6.7-1f11451 (channel 6.0 stable). The channel 4.0/stable is not affected as it contains version 4.0.10.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.09.4CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 4.0
Base score: 9.4
Base severity: CRITICAL
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-78Secondarysecurity@ubuntu.com
CWE ID: CWE-78
Type: Secondary
Source: security@ubuntu.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365security@ubuntu.com
N/A
https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052security@ubuntu.com
N/A
https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9security@ubuntu.com
N/A
https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4fsecurity@ubuntu.com
N/A
https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9gsecurity@ubuntu.com
N/A
https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Hyperlink: https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365
Source: security@ubuntu.com
Resource: N/A
Hyperlink: https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052
Source: security@ubuntu.com
Resource: N/A
Hyperlink: https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9
Source: security@ubuntu.com
Resource: N/A
Hyperlink: https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f
Source: security@ubuntu.com
Resource: N/A
Hyperlink: https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g
Source: security@ubuntu.com
Resource: N/A
Hyperlink: https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A
Change History
0Changes found
Details not found