{"id":"CVE-2026-82636","state":"PUBLISHED","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 functio","description":"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 metacharacters. This occurs in core-admin-linux/file-copy-vm/qfile-dom0-agent.c.","publishedAt":"2026-08-30T13:05:46.409Z","updatedAt":"2026-08-31T16:47:43.793Z","severity":{"score":7.9,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","source":"mitre"},"assigner":"mitre","products":["Qubes OS Qubes OS"],"affected":[{"vendor":"Qubes OS","product":"Qubes OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"qubes-core-dom0-linux 4.3.22","versionType":"custom"}]}],"references":["https://www.qubes-os.org/news/2026/08/29/qsb-118/","https://news.ycombinator.com/item?id=49496918"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82636.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82636","state":"PUBLISHED","datePublished":"2026-08-30T13:05:46.409Z","dateUpdated":"2026-08-31T16:47:43.793Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-08-30T13:05:45.855Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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 metacharacters. This occurs in core-admin-linux/file-copy-vm/qfile-dom0-agent.c."}],"affected":[{"vendor":"Qubes OS","product":"Qubes OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"qubes-core-dom0-linux 4.3.22","versionType":"custom"}]}],"references":[{"url":"https://www.qubes-os.org/news/2026/08/29/qsb-118/"},{"url":"https://news.ycombinator.com/item?id=49496918"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":7.9,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","description":"CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-08-30T13:05:46.409Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-31T16:47:32.785169Z","id":"CVE-2026-82636","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-31T16:47:43.793Z"}}]}}}