CVE-2026-18140 - Uncontrolled recursion in the aws-smithy-json unknown-key skip path allows unauthenticated remote denial of service in smithy-rs generated servers

A separate affected-products list was not included in the collected bulletin.

Separate remediation guidance was not included in the collected bulletin.

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 19, 2026 at 9:40 PM UTC
   • The vendor changed the advisory's last-updated date.
2. Oct 16, 2026 at 6:40 PM UTC
   • The vendor changed the advisory summary.
3. Sep 22, 2026 at 8:05 PM UTC
   • The vendor changed the advisory's last-updated date.
4. Sep 9, 2026 at 9:30 PM UTC
   • The vendor changed the advisory's last-updated date.
5. Aug 20, 2026 at 9:50 PM UTC
   • The vendor changed the advisory's last-updated date.

1. Aug 20, 2026 at 2:20 AM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

2. Oct 19, 2026 at 6:13 PM UTC
   Published by AWS

   The publication date reported by the vendor.

3. Oct 20, 2026 at 3:40 PM UTC
   Confirmed at the source

   Our collector saw this advisory during a later source check.