Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs
Summary
Incus vulnerable to antispoofing nftables firewall rule bypass on bridge networks with ACLs
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2025-52890 incus
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com