Vulnerability Description
A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally by Canonical snapd to construct the secure execution environment for snap applications. This vulnerability uniquely affects versions of snap-confine configured with set-capabilities (rather than standard set-uid-root installations). Due to a flaw in how privilege boundaries or security sandboxes are initialized when the binary runs under limited ambient capabilities, a local, unprivileged attacker can exploit this behavior to bypass intended restrictions and execute arbitrary code. Successful exploitation allows the local user to elevate their privileges to full root authority.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-8933?
CVE-2026-8933 is a vulnerability with a CVSS score of 7.8 (HIGH). A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally by Canonical snapd to construct the secure execution environment for snap applicati...
How severe is CVE-2026-8933?
CVE-2026-8933 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-8933?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.