CVE-2026-49237
- Source
- https://cve.org/CVERecord?id=CVE-2026-49237
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49237.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-49237
- Aliases
-
- GHSA-r2xg-x32f-23c5
- Published
- 2026-05-28T13:22:42.840Z
- Modified
- 2026-07-08T08:13:55.198835659Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Local Privilege Escalation in Canonical Multipass
- Details
-
An issue was discovered in Canonical Multipass for macOS before version 1.16.3 due to an incomplete fix for CVE-2025-5199. While the patch in version 1.16.0 updated the ownership of the multipassd daemon binary to root:wheel, five co-located binaries (multipass, qemu-img, qemu-system-aarch64, qemu-system-x8664, and sshfsserver) in /Library/Application Support/com.canonical.multipass/bin/ retain ownership by the installing user and remain writable. Because the root LaunchDaemon (com.canonical.multipassd.plist) configures a PATH environment variable that prioritizes this user-writable directory and invokes these auxiliary binaries by their bare names, a local attacker can replace an auxiliary binary (such as qemu-img) with a malicious wrapper. When the root daemon subsequently triggers the binary during routine execution (e.g., via multipass launch), the malicious code executes with root privileges, leading to local privilege escalation.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49237.json", "cwe_ids": [ "CWE-276" ], "cna_assigner": "canonical" }- References
Affected packages
Git / github.com/canonical/multipass
Affected ranges
- Type
- GIT
- Repo
- https://github.com/canonical/multipass
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "source": [ "AFFECTED_FIELD", "CPE_RANGE" ], "cpe": "cpe:2.3:a:canonical:multipass:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.16.3" } ] }