Unintended Proxy or Intermediary in BuildKit - CVE-2026-93320
Published: October 2, 2026
Vulnerability identifier: #VU153193
CSH Severity: High
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93320
CWE-ID: CWE-441
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper handling of special files in build snapshots. A remote attacker can gain access to host devices on rootful workers or cause a denial of service (DoS) condition.
Affected software
BuildKit
How to mitigate CVE-2026-93320
Install updates from vendor's website.
BuildKit - update to 0.33.1