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Description

Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus versions 6.12 and 6.13generates nftables rules that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to ARP spoofing on the bridge and to fully spoof another VM/container on the same bridge. Commit 254dfd2483ab8de39b47c2258b7f1cf0759231c8 contains a patch for the issue.

PUBLISHED Reserved 2025-06-20 | Published 2025-06-25 | Updated 2025-06-25 | Assigner GitHub_M




HIGH: 8.1CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:H

Problem types

CWE-863: Incorrect Authorization

Product status

>= 6.12, <= 6.13
affected

References

github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp exploit

github.com/lxc/incus/security/advisories/GHSA-p7fw-vjjm-2rwp

github.com/...ommit/254dfd2483ab8de39b47c2258b7f1cf0759231c8

cve.org (CVE-2025-52890)

nvd.nist.gov (CVE-2025-52890)

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