All vulnerabilities
CVE-2026-115377GHSA-579w-c4rw-c8q3

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File Write via Symlink in Migration Stream

lxc incus
Open in ThreatlineRecord JSON
CVSS
9.4Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.40%Chance of exploitation activity in the next 30 days, higher than 33% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.0.7Also 7.0.2, 7.5.0CVE List
Published22 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability that allows malicious migration sources to write host files by planting symlinks in transferred volumes. Attackers can craft rsync or btrfs receive streams with a symlink such as rootfs pointing to the host root, writing files as root for full host compromise.

Text from CVE List

Affected versions 7

  • incusaffected: all versions before 6.0.7CVE List
  • incusunaffected: 6.0.7CVE List
  • incusaffected: 6.1.0 before 7.0.2CVE List
  • incusunaffected: 7.0.2CVE List
  • incusaffected: 7.1.0 before 7.5.0CVE List
  • incusunaffected: 7.5.0CVE List
  • github.com/lxc/incus/v7/cmd/incusd, go< v7.5.0GitHub

References 2