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VULNERABILITIES

CVE-2026-63622 Details

Description

A flaw was found in libvirt. A local attacker, specifically a process running as the confined `swtpm` user, could exploit a symlink-following vulnerability in the `virFileChownFiles()` function. By planting a symbolic link within the `swtpm` state directory, the attacker could trick the root-level libvirt daemon into changing the ownership of an arbitrary file to the `swtpm` user. This allows for privilege escalation from the `swtpm` sandbox to root-level file ownership control.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:64773 [email protected]
https://access.redhat.com/errata/RHSA-2026:65515 [email protected]
https://access.redhat.com/errata/RHSA-2026:65516 [email protected]
https://access.redhat.com/errata/RHSA-2026:65803 [email protected]
https://access.redhat.com/errata/RHSA-2026:68513 [email protected]

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-59Improper Link Resolution Before File Access ('Link Following')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-63622
NVD Published Date:
Aug 10, 2026
NVD Last Modified:
Sep 21, 2026
Source:
[email protected]
CVE-2026-63622 Details - Not Deferred