{"id":"CVE-2026-28384","aliases":["ALPINE-CVE-2026-28384","DEBIAN-CVE-2026-28384","DSA-6184-1","DSA-6188-1","EUVD-2026-11585","GHSA-4rmf-rcp8-2r9g"],"status":"published","title":"Authenticated RCE via unsanitized compression_algorithm","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.","severity":{"version":"4.0","score":9.4,"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00768,"percentile":0.5582,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-78"],"published":"2026-03-12T14:51:29Z","modified":"2026-11-03T06:32:53Z","fixes":[{"ecosystem":"Alpine:v3.23","package":"incus","fixed_in":["6.0.6-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"incus","fixed_in":["6.0.6-r0"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"incus","fixed_in":["6.0.4-2+deb13u5"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"incus","fixed_in":["6.0.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"lxd","fixed_in":["5.0.2+git20231211.1364ae4-9+deb13u4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.23","package":"incus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.6-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"incus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.6-r0"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"incus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.4-2+deb13u5"}]}],"versions":["6.0.4-2","6.0.4-2+deb13u1","6.0.4-2+deb13u1~bpo12+1","6.0.4-2+deb13u2","6.0.4-2+deb13u2~bpo12+1","6.0.4-2+deb13u3","6.0.4-2+deb13u3~bpo12+1","6.0.4-2+deb13u4","6.0.4-2+deb13u4~bpo12+1","6.0.4-2+deb13u5~bpo12+1"]},{"source":"osv","ecosystem":"Debian:14","package":"incus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.6-1"}]}],"versions":["6.0.4-2","6.0.4-3","6.0.5-1","6.0.5-2","6.0.5-3","6.0.5-4","6.0.5-5","6.0.5-6","6.0.5-7","6.0.5-8"]},{"source":"osv","ecosystem":"Debian:12","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.2+git20231211.1364ae4-1","5.0.2+git20231211.1364ae4-2","5.0.2+git20231211.1364ae4-3","5.0.2+git20231211.1364ae4-4","5.0.2+git20231211.1364ae4-5","5.0.2+git20231211.1364ae4-6","5.0.2+git20231211.1364ae4-7","5.0.2+git20231211.1364ae4-8","5.0.2+git20231211.1364ae4-9","5.0.2-5","5.0.2-5+deb12u1","5.0.2-5+deb12u2","5.0.2-5+deb12u3","5.0.2-5+deb12u4","5.0.2-5+deb12u5","5.0.2-5+deb12u6","5.0.2-6"]},{"source":"osv","ecosystem":"Debian:13","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.2+git20231211.1364ae4-9+deb13u4"}]}],"versions":["5.0.2+git20231211.1364ae4-9","5.0.2+git20231211.1364ae4-9+deb13u1","5.0.2+git20231211.1364ae4-9+deb13u2","5.0.2+git20231211.1364ae4-9+deb13u3"]},{"source":"osv","ecosystem":"Debian:13","package":"incus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.4-2+deb13u5"}]}],"versions":["6.0.4-2","6.0.4-2+deb13u1","6.0.4-2+deb13u1~bpo12+1","6.0.4-2+deb13u2","6.0.4-2+deb13u2~bpo12+1","6.0.4-2+deb13u3","6.0.4-2+deb13u3~bpo12+1","6.0.4-2+deb13u4","6.0.4-2+deb13u4~bpo12+1"],"bundled":4},{"source":"osv","ecosystem":"Debian:12","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.2-5+deb12u4"}]}],"versions":["5.0.2-5","5.0.2-5+deb12u1","5.0.2-5+deb12u2","5.0.2-5+deb12u3"],"bundled":3},{"source":"osv","ecosystem":"Debian:13","package":"lxd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.2+git20231211.1364ae4-9+deb13u4"}]}],"versions":["5.0.2+git20231211.1364ae4-9","5.0.2+git20231211.1364ae4-9+deb13u1","5.0.2+git20231211.1364ae4-9+deb13u2","5.0.2+git20231211.1364ae4-9+deb13u3"],"bundled":3}],"products":[{"vendor":"canonical","product":"lxd"}],"references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-4rmf-rcp8-2r9g","tags":["vendor-advisory","exploit","Vendor Advisory","Exploit","advisory"]},{"url":"https://github.com/canonical/lxd/commit/043696a13171ace7dd4c2b32d34ce039ab629052","tags":["patch","Patch","fix"]},{"url":"https://github.com/canonical/lxd/commit/7046979645c2ce1b63b2f9e60ddf6cbc4c4b78f9","tags":["patch","Patch","fix"]},{"url":"https://github.com/canonical/lxd/commit/b7b411caf5c4971bfe2386c72128f44d7e2aaf4f","tags":["patch","Patch","fix"]},{"url":"https://discourse.ubuntu.com/t/lxd-authenticated-remote-code-execution-fixes-available/78365","tags":["media-coverage","Issue Tracking","Exploit","Vendor Advisory","web"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-28384","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28384.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28384","tags":["advisory"]},{"url":"https://github.com/canonical/lxd","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-28384","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-28384","title":"Authenticated RCE via unsanitized compression_algorithm","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.","status":"published","published":"2026-03-12T14:51:29.991Z","modified":"2026-03-13T16:30:06.396Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:20:02.290587Z"}],"euvd":[{"id":"EUVD-2026-11585","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.","status":"published","published":"2026-03-12T14:51:29Z","modified":"2026-03-13T16:30:06Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical"}],"updated_at":"2026-11-02T19:25:35.010093Z"}],"nvd":[{"id":"CVE-2026-28384","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.","status":"published","published":"2026-03-12T15:16:27.247Z","modified":"2026-09-18T14:08:53.59Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:12:09.358914Z"}],"osv":[{"id":"ALPINE-CVE-2026-28384","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.","status":"published","published":"2026-03-12T15:16:27.247Z","modified":"2026-11-03T06:32:53.686141057Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T07:16:26.770911Z"},{"id":"CVE-2026-28384","title":"Authenticated RCE via unsanitized compression_algorithm","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.","status":"published","published":"2026-03-12T14:51:29.991Z","modified":"2026-10-28T02:30:52.497320339Z","cvss":[{"version":"4.0","score":9.4,"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","level":"critical"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:45:00.180685Z"},{"id":"DEBIAN-CVE-2026-28384","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.","status":"published","published":"2026-03-12T15:16:27.247Z","modified":"2026-10-01T03:03:08.01653593Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:53.877573Z"},{"id":"DSA-6184-1","title":"incus - security update","status":"published","published":"2026-03-29T00:00:00Z","modified":"2026-03-29T15:31:25.462191Z","updated_at":"2026-11-02T15:46:18.296714Z"},{"id":"DSA-6188-1","title":"lxd - security update","status":"published","published":"2026-03-31T00:00:00Z","modified":"2026-03-31T21:31:27.278629Z","updated_at":"2026-11-02T15:46:18.296714Z"}]}}