Oversized Dockerfile or .dockerignore can exhaust buildkitd memory

• azl3 moby-engine 25.0.3-20 on Azure Linux 3.0

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

1. Oct 17, 2026 at 12:05 PM UTC
   • Added fixed versions: 25.0.18-1.
2. Oct 16, 2026 at 11:45 AM UTC
   • Removed affected products: azl3 docker-buildx 0.14.0-17 on Azure Linux 3.0.

1. Oct 9, 2026 at 1:09 AM UTC
   Published by Microsoft Security Response Center

   The publication date reported by the vendor.

2. Oct 12, 2026 at 10:25 AM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

3. Oct 17, 2026 at 1:43 AM UTC
   Updated by Microsoft Security Response Center

   The vendor changed the advisory after it was first published.

4. Oct 21, 2026 at 1:15 AM UTC
   Confirmed at the source

   Our collector saw this advisory during a later source check.