What is CVE-2026-49238?

CVE-2026-49238 is a high-severity vulnerability in Canonical Multipass, classified under Path Traversal. CVSS score: 8.4/10. Published 2026-05-28.

How severe is CVE-2026-49238?

High severity. CVSS v3 base score is 8.4 out of 10.

Path Traversal in Canonical Multipass

CVE-2026-49238

An issue was discovered in Canonical Multipass before version 1.16.3. The host-side SFTP server component (sshfs_server), which executes with root privileges on the host, contains a path containment bypass vulnerability within its validate…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.000 (7.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.

Affected products

Canonical Multipass — versions 0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security@ubuntu.com (Exploit, vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2026-49238?: CVE-2026-49238 is a high-severity vulnerability in Canonical Multipass, classified under Path Traversal. CVSS score: 8.4/10. Published 2026-05-28.
How severe is CVE-2026-49238?: High severity. CVSS v3 base score is 8.4 out of 10.