CVEvulnerability
CVE-2026-63622
7.8 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-08-10
- Last modified
- 2026-10-05
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-59
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.
Related
Weakness · CWE (1)
- CWE-59 Improper Link Resolution Before File Access weakness
References
- https://access.redhat.com/errata/RHSA-2026:64773 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:65515 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:65516 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:65803 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:68513 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:68594 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:69114 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:69131 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:74424 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:75583 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-63622 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2513065 bugzilla.redhat.com