Vulnerability · Published Oct 5, 2026 · Assigned by Docker
CVE-2026-93326Crafted Git build source can bypass certain policy validation
Medium 6.0
In plain English
A medium-severity security flaw in BuildKit from moby. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Official description
A build step for a Git source, crafted in a specific way, can bypass some policy validation rules. A malicious build definition can make the repository look like it is coming from a different remote URL than it really is when Git clone is happening. If policy is doing more stricter validation, for example based on commit SHA, commit data, or signatures, then all these validations still apply correctly.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:26.04:LTS | docker.io | no fix listed | UBUNTU-CVE-2026-93326 |
| Ubuntu:26.10 | docker.io | no fix listed | UBUNTU-CVE-2026-93326 |
| Ubuntu:26.04:LTS | docker.io-app | no fix listed | UBUNTU-CVE-2026-93326 |
| Ubuntu:26.10 | docker.io-app | no fix listed | UBUNTU-CVE-2026-93326 |
Affected products (as reported)
Weakness: CWE-180 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N