CVE-2026-15791

A crafted message in the BuildKit low-level build API can be used to remove the contents of the /tmp directory. The action that can normally be used to delete files inside the build container rootfs can escape into the real host temp directory.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/moby/buildkit/security/advisories/GHSA-32pv-7hq5-qhwq	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mobyproject:buildkit:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-21 17:17

Updated : 2026-07-30 15:59

NVD link : CVE-2026-15791

Mitre link : CVE-2026-15791

CVE.ORG link : CVE-2026-15791

JSON object : View

Products Affected

mobyproject

buildkit

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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