Vulnerability Description
Incus is a system container and virtual machine manager. Prior to version 7.0.0, user provided image and backup tarballs would be unpacked and YAML files parsed without any size restrictions. This was making it easy for an authenticated user to provide a crafted image or backup tarball that when parsed by Incus would lead to a very large YAML document being loaded into memory, potentially causing the entire server to run out of memory. This issue has been patched in version 7.0.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxcontainers | Incus | < 7.0.0 |
Related Weaknesses (CWE)
References
- https://github.com/lxc/incus/releases/tag/v7.0.0PatchProduct
- https://github.com/lxc/incus/security/advisories/GHSA-67wx-r9xr-x75xExploitMitigationVendor Advisory
- https://github.com/lxc/incus/security/advisories/GHSA-67wx-r9xr-x75xExploitMitigationVendor Advisory
FAQ
What is CVE-2026-41648?
CVE-2026-41648 is a vulnerability with a CVSS score of 5.0 (MEDIUM). Incus is a system container and virtual machine manager. Prior to version 7.0.0, user provided image and backup tarballs would be unpacked and YAML files parsed without any size restrictions. This was...
How severe is CVE-2026-41648?
CVE-2026-41648 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41648?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxcontainers Incus.