Fix transparency log tile verification bypass in golang.org/x/mod/sumdb/tlog

• azl3 golang 1.25.12-1 on Azure Linux 3.0

• azl3 golang 1.26.5-2 on Azure Linux 3.0

• azl3 golang 1.27.0-1 on Azure Linux 3.0

• azl3 golang 1.26.7-1 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 25, 2026 at 8:40 AM UTC
   • The vendor changed the advisory's last-updated date.
2. Sep 27, 2026 at 11:11 PM UTC
   • Added affected products: azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.0-1 on Azure Linux 3.0.
   • Removed affected products: azl3 gcc 13.2.0-7 on Azure Linux 3.0, azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0, azl3 tensorflow 2.16.1-11 on Azure Linux 3.0.
   • Added fixed versions: 1.26.6-1.
   • The vendor changed its remediation guidance.
3. Sep 4, 2026 at 11:50 AM UTC
   • The vendor changed the advisory's last-updated date.

1. Aug 20, 2026 at 10:00 PM UTC
   Published by Microsoft Security Response Center

   The publication date reported by the vendor.

2. Aug 21, 2026 at 7:10 AM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

3. Oct 22, 2026 at 1:11 AM UTC
   Updated by Microsoft Security Response Center

   The vendor changed the advisory after it was first published.

4. Oct 28, 2026 at 3:45 AM UTC
   Confirmed at the source

   Our collector saw this advisory during a later source check.