CVE-2026-82636

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82636
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-30 14:17:03 UTC
Updated2026-08-30 14:17:03 UTC
DescriptionQubes 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.

Risk And Classification

Primary CVSS: v3.1 7.9 HIGH from [email protected]

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Problem Types: CWE-78 | CWE-78 CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.9HIGHCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
3.1CNACVSS7.9HIGHCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Qubes OS Qubes OS affected qubes-core-dom0-linux 4.3.22 custom Not specified

References

ReferenceSourceLinkTags
news.ycombinator.com/item [email protected] news.ycombinator.com
www.qubes-os.org/news/2026/08/29/qsb-118 [email protected] www.qubes-os.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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