CVE-2026-28384 (GCVE-0-2026-28384)

Vulnerability from cvelistv5 – Published: 2026-03-12 14:51 – Updated: 2026-03-13 16:30
VLAI
Title
Authenticated RCE via unsanitized compression_algorithm
Summary
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.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-13 16:30 UTC
CWE
  • CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
Impacted products
Vendor Product Version CPE status
Canonical lxd Affected: 6.0 , < 6.7 (semver)
Affected: 5.21.0 , < 5.21.4 (semver)
Affected: 5.0.0 , < 5.0.6 (semver)
Affected: 4.12
guessed Create a notification for this product.
Date Public
2026-03-12 15:00
Show details on NVD website

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            "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
            "shortName": "canonical"
          },
          "references": [
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f"
            },
            {
              "tags": [
                "media-coverage"
              ],
              "url": "https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Authenticated RCE via unsanitized compression_algorithm"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "assignerShortName": "canonical",
        "cveId": "CVE-2026-28384",
        "datePublished": "2026-03-12T14:51:29.991Z",
        "dateReserved": "2026-02-27T11:06:14.064Z",
        "dateUpdated": "2026-03-12T15:02:57.074Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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