{"schemaVersion":3,"id":"CVE-2026-28384","aliases":["DEBIAN-CVE-2026-28384"],"status":"published","duplicateOf":null,"title":null,"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.","dates":{"published":"2026-03-12T14:51:29.991Z","modified":"2026-03-13T16:30:06.396Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.9,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":9.4,"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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":9.9,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":7.9,"impact":10,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":9.4,"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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.9,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00896,"percentile":0.58894,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.2429999999999999,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00653},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00618,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00618,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00618,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00618,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00618,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00896,"percentile":0.58894}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00653,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00863,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00896,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00896,"percentile":0.58894}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"GITHUB_CANONICAL_LXD","name":"Lxd","source":"github","url":"https://github.com/canonical/lxd/security/advisories/GHSA-4c49-9fpc-hc3v","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"REF_55EC8D7C9DB4C319","name":"Exploit Reference (discourse.ubuntu.com)","source":"reference","url":"https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":2,"weaknesses":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","description":"The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/78.html"}],"affected":[{"vendor":"canonical","product":"lxd","name":"lxd","label":"lxd","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 5.0.0, < 5.0.6","noFixRecorded":false,"fixedIn":null},{"text":"4.12","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.12, < 5.0.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 5.21.0, < 5.21.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.0, < 6.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 5.0.0, < 5.0.6 | 4.12 | ≥ 4.12, < 5.0.6 | ≥ 5.21.0, < 5.21.4 | ≥ 6.0, < 6.7","eol":null,"hubHref":"/vendor/canonical/lxd"},{"vendor":"debian","product":"incus","name":"incus","label":"incus","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/incus","purlType":"deb","versions":[{"text":"< 6.0.4-2+deb13u5","noFixRecorded":false,"fixedIn":null},{"text":"< 6.0.6-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.0.4-2+deb13u5 | < 6.0.6-1","eol":null,"hubHref":null},{"vendor":"debian","product":"lxd","name":"lxd","label":"lxd","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/lxd","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 5.0.2+git20231211.1364ae4-9+deb13u4","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 5.0.2+git20231211.1364ae4-9+deb13u4","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g","label":"github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g","hostname":"github.com","tags":["Vendor Advisory","Exploit"]},{"url":"https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052","label":"github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052","hostname":"github.com","tags":["Patch"]},{"url":"https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9","label":"github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9","hostname":"github.com","tags":["Patch"]},{"url":"https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f","label":"github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f","hostname":"github.com","tags":["Patch"]},{"url":"https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365","label":"discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365","hostname":"discourse.ubuntu.com","tags":["Media Coverage","Issue Tracking","Exploit","Vendor Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-28384","label":"security-tracker.debian.org/tracker/CVE-2026-28384","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DSA-6184-1","DSA-6188-1"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-03-12T14:51:29.991Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-13T16:30:06.396Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T11:42:35.573Z","stale":false,"partial":false}}