{"id":"CVE-2026-82636","title":"Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the \"system\" library function is used to process an error message that may have shell…","summary":"Qubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the \"system\" library function is used to process an error message that may have shell…","severity":"high","cvss":7.9,"cvssVector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-78"],"published":"2026-08-30","updated":"2026-09-08","sourceUpdated":"2026-09-08T19:42:20.313","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82636","references":[{"url":"https://news.ycombinator.com/item?id=49496918","label":"cve@mitre.org"},{"url":"https://www.qubes-os.org/news/2026/08/29/qsb-118/","label":"cve@mitre.org"}],"tags":["nvd"],"epss":0.00789,"epssPercentile":0.5477,"ingestedAt":"2026-08-30T23:59:27.963Z","slug":"CVE-2026-82636","body":"## Overview\n\nQubes OS before qubes-core-dom0-linux 4.3.22 allows OS command injection during a qvm-copy-to-vm call from dom0 to an attacker-controlled qube, because the \"system\" library function is used to process an error message that may have shell metacharacters. This occurs in core-admin-linux/file-copy-vm/qfile-dom0-agent.c.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":43.5,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}