Potential Flaw in Hypervisor from Xen Project Affecting Resource Management
CVE-2026-79608

Currently unrated

Key Information:

Vendor: Xen Project
Status: Xen Project
Vendor: CVE Published:; 13 October 2026

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What is CVE-2026-79608?

A flaw in the workaround for an earlier security issue has resulted in an inverted conditional logic within the Xen hypervisor. This error may allow the workaround to not be applied when necessary, leading to potential inconsistencies in resource management. The issue stems from a reworked integration that failed to maintain the intended security measures. Users are advised to review the advisory for further details on the implications and recommended actions.

Affected Version(s)

Xen consult Xen advisory XSA-515

References

https://xenbits.xenproject.org/xsa/advisory-515.html

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Timeline

Vulnerability published
Oct 13, 2026
Vulnerability Reserved
Aug 25, 2026

Credit

This issue was discovered by Sashiko + Opus 5.0 and diagnosed as a security issue by George Dunlap.

CVE-2026-79608 Data

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