Arbitrary Command Execution in GNU Bison

• azl3 bison 3.8.2-1 on Azure Linux 3.0

• azl3 bison 3.8.2-2 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 22, 2026 at 7:40 AM UTC
   • The vendor changed the advisory's last-updated date.
2. Sep 28, 2026 at 11:20 AM UTC
   • Added affected products: azl3 bison 3.8.2-2 on Azure Linux 3.0.

1. Aug 7, 2026 at 12:29 AM UTC
   Published by Microsoft Security Response Center

   The publication date reported by the vendor.

2. Sep 3, 2026 at 11:40 PM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

3. Oct 22, 2026 at 1:08 AM UTC
   Updated by Microsoft Security Response Center

   The vendor changed the advisory after it was first published.

4. Oct 28, 2026 at 9:50 AM UTC
   Confirmed at the source

   Our collector saw this advisory during a later source check.