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CVE-2026-28384

Authenticated RCE via unsanitized compression_algorithm

Published: Mar 12, 2026Updated: Mar 13, 2026 Sources: CVE List NVD BDUCWE-78
NVD MITRE
9.9CVSSCRITICAL
EPSS Score
0.5%
Top 61.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LC:HI:HA:H
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Impact
C:HConfidentiality
H
I:HIntegrity
H
A:HAvailability
H
Open in CVSS calculator →

Weaknesses

CWE-78

Affected Products

lxdCanonical
On-prem
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
LXDCanonical Ltd.
On-prem
Operating Systems / linux-distro
canonicalcommercialGBOperating Systemsaka canonical ltd.
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
canonical ltd.commercialGBOperating Systemsaka canonical

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g
github.com
https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052
github.com
https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9
github.com
and 9 more references View all →

Timeline

Published
Mar 12, 2026
Last Updated
Mar 13, 2026

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