---
id: CVE-2026-61439
title: >-
  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
summary: >-
  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 promp…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-1188
published: '2026-07-11'
updated: '2026-07-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-61439'
references:
  - url: >-
      https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-fj8f-m44g-c479
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/praisonai-before-prompt-injection-defense-bypass
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-07-11T23:16:21.350Z'
epss: 0.00432
epssPercentile: 0.34886
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.