Improper validation of integrity check value in BuildKit - CVE-2026-93317
Published: October 2, 2026
Vulnerability identifier: #VU153189
CSH Severity: Medium
CVSS v4: 5.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93317
CWE-ID: CWE-354
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 validation of integrity check value. A remote user can provide unverified blob contents matching a claimed digest to poison the shared blob cache.
Affected software
BuildKit
How to mitigate CVE-2026-93317
Install updates from vendor's website.
BuildKit - update to 0.33.1