CVE-2026-61439 HIGH

CVE-2026-61439: PraisonAI before 4.6.78 Prompt Injection Defense Bypass

Vendor Mervinpraison
Product PraisonAI
Weakness CWE-1188
Published July 11, 2026
Last update July 11, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

PraisonAI versions before 4.6.78 contain a prompt injection defense misconfiguration where the block threshold defaults to CRITICAL severity, allowing HIGH-level threats to pass through unblocked. Attackers can submit single-vector prompt injection attacks such as instruction overrides or financial manipulation that trigger HIGH severity detection but are logged without blocking, enabling system prompt extraction and unauthorized tool invocations.

Key dates

02Disclosure timeline

July 11, 2026 CVE published