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CVE-2026-42490

🗓️ 18 Jun 2026 14:17:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 7 Views

A system-wide lock for guest management is unfair and may be acquired before permission checks when using XSM Flask.

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[SECURITY] [DSA 6424-1] xen security update
9 Aug 202619:34
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18 Jun 202613:47
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Tenable Nessus
Debian dsa-6424 : libxen-dev - security update
9 Aug 202600:00
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Fedora 44 : xen (2026-24b84f97af)
17 Jun 202600:00
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Tenable Nessus
Fedora 43 : xen (2026-9b1af4c793)
11 Aug 202600:00
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu16.04allxen0xen_0_all.deb
Ubuntu18.04allxen0xen_0_all.deb
Ubuntu20.04allxen0xen_0_all.deb
Ubuntu22.04allxen0xen_0_all.deb
Ubuntu24.04allxen0xen_0_all.deb
Ubuntu26.04allxen0xen_0_all.deb

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25 Jun 2026 15:25Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.16.5
EPSS0.002
SSVC
7