type: cve · created: 2026-07-23 · updated: 2026-07-23 · tags: [cve, lpe, ubuntu, snap, linux, privilege-escalation] · confidence: high · severity: not-rated · affected_sectors: [technology, government, healthcare, finance, defence] · au_impact: true
CVE-2026-8933 — Ubuntu snap-confine Local Privilege Escalation
CVE-2026-8933 is a local privilege escalation (LPE) vulnerability in Ubuntu's snap-confine, the confinement mechanism for Snap packages. Disclosed in July 2026.
Vulnerability Details
| Attribute | Detail |
|---|---|
| CVE | CVE-2026-8933 |
| Type | Local Privilege Escalation |
| Product | Ubuntu snap-confine (Snap confinement) |
| Impact | Privilege escalation from restricted Snap environment |
| Disclosure | July 2026 |
Context
Snap packages are widely used across Ubuntu systems, including in enterprise, government, and cloud environments. An LPE in snap-confine undermines the core security model of Snap — its application confinement/isolation.
Mitigation
- Apply the latest Ubuntu security updates for the
snapdpackage - Monitor Canonical's security advisories for patch availability
- Review use of Snaps in sensitive/high-security environments
Related Pages
- Ghostlock Cve 2026 43499 — Linux kernel LPE + container escape (similar Linux privilege escalation)