CVE-2026-41496: PraisonAI: SQL Injection via unvalidated `table_prefix` in 9 conversation store backends (incomplete fix for CVE-2026-40315)

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-08 · updated 2026-10-26
Weakness: CWE-89

Description

PraisonAI is a multi-agent teams system. Prior to praisonai version 4.6.9 and praisonaiagents version 1.6.9, the fix for CVE-2026-40315 added input validation to SQLiteConversationStore only. Nine sibling backends — MySQL, PostgreSQL, async SQLite/MySQL/PostgreSQL, Turso, SingleStore, Supabase, SurrealDB — pass table_prefix straight into f-string SQL. Same root cause, same code pattern, same exploitation. 52 unvalidated injection points across the codebase. postgres.py additionally accepts an unvalidated schema parameter used directly in DDL. This issue has been patched in praisonai version 4.6.9 and praisonaiagents version 1.6.9.

Affected products

MervinPraison PraisonAI: before 4.6.9 — fixed in 4.6.9
MervinPraison praisonaiagents: before 1.6.9 — fixed in 1.6.9

How to fix

Upgrade to a fixed version: MervinPraison PraisonAI 4.6.9; MervinPraison praisonaiagents 1.6.9. Check the vendor advisory for mitigations.

References

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