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CVE-2026-15791

LOW
3.3
CVSS 4.0
Description
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.

Metadata

CVE ID
CVE-2026-15791
State
PUBLISHED
Assigner
Docker
Reserved
2026-07-14 19:30 UTC
Published
2026-07-21 16:10 UTC
Last updated
2026-07-21 17:08 UTC
Primary CWE
CWE-22
CWE-22: Improper Limitation of a Pathname to a Restricted Di…
Vendor / Product
moby / BuildKit
Sources
cve.org  ·  NVD

Severity & Metrics

3.3 LOW CVSS 4.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
moby BuildKit Linux,MacOS,Windows 0.10.0 < 0.31.2
Weakness (CWE)
CWESourceDescription
CWE-22 cna CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS scores (1)
ScoreSeverityVersionSourceVector
3.3 LOW 4.0 cna CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
References (1)
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