CVE-2026-15791 — LLB file operation can be tricked to remove /tmp directory contents
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 b…
Published: 2026-07-21 · CVSS: 3.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7