Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U H H H 7.8 .0014 4.0 —
AFFECTED Product Versions Fixed Multipass unspecified —
TIMELINE May 28 EXPLOIT PUBLISHED — CVE-2026-49237 (Canonical Multipass). Public exploit reference added. May 28 Reserved by canonical May 28 Published (CNA: canonical)
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-x86_64, and sshfs_server) 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.
| Date | Event | Detail |
|---|---|---|
| May 28, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-49237 (Canonical Multipass). Public exploit reference added. |
| May 28, 2026 | Reserved | Reserved by canonical |
| May 28, 2026 | Published | Published (CNA: canonical) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| Canonical | Multipass | — | — | — |
Authoritative record: CVE-2026-49237 at cve.org
Vendors: canonical
Weaknesses: CWE-276
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-49237 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.