Vulnerability details
CVE-2026-115377
lxc incus
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
CVSS 4.0
9.4Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.4Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| 9.9Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| lxc | incus | v < 6.0.7 | CVEProject cvelistV5 (CNA) |
| lxc | incus | 6.1.0 ≤ v < 7.0.2 | CVEProject cvelistV5 (CNA) |
| lxc | incus | 7.1.0 ≤ v < 7.5.0 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-10-22
- Last updated
- 2026-10-29
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 23 · Low
Exploit prediction (EPSS)
0.4%
Probability of exploitation in 30 days
35%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-59Improper Link Resolution Before File Access ('Link Following')