CVE-2026-34934: Praison Praisonai

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

PraisonAI is a multi-agent teams system. Prior to version 4.5.90, the get_all_user_threads function constructs raw SQL queries using f-strings with unescaped thread IDs fetched from the database. An attacker stores a malicious thread ID via update_thread. When the application loads the thread list, the injected payload executes and grants full database access. This issue has been patched in version 4.5.90.

Affected products

• Praison Praisonai: before 4.5.90 (fixed in 4.5.90)

Published 2026-04-03. Last modified 2026-07-24.