CVE-2026-46654 Plonky3 MultiField32Challenger: transcript malleability and challenge entropy loss

Plonky3 is a toolkit for polynomial IOPs PIOPs. Prior to versions 0.4.3 and 0.5.3, an attacker controlling prover-side observations can craft distinct transcripts that produce identical challenges, breaking the binding property of Fiat-Shamir. This issue has been patched in versions 0.4.3 and 0.5...

CVE-2026-32104 StudioCMS: IDOR in User Notification Preferences Allows Any Authenticated User to Modify Any User's Settings

StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.3, the updateUserNotifications endpoint accepts a user ID from the request payload and uses it to update that user's notification preferences. It checks that the caller is logged in but never...