CVE-2026-15791 (GCVE-0-2026-15791)
Vulnerability from cvelistv5 – Published: 2026-07-21 16:10 – Updated: 2026-07-21 17:08
VLAI
EPSS
VEX
Title
LLB file operation can be tricked to remove /tmp directory contents
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 17:08 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/moby/buildkit/security/advisor… | vendor-advisory |
Impacted products
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