CVE-2026-61428

High

Description

PraisonAI AgentMail versions before 4.6.78 lack signature verification in webhook mode, allowing unauthenticated attackers to inject messages with spoofed sender addresses. Attackers can POST crafted message.received events to the webhook endpoint to inject arbitrary content into the agent and trigger replies to attacker-controlled addresses, bypassing sender allow/block lists.

SeverityHigh

CVSS7.3

Exploit probability—

ProductPraisonai

PublishedJul 11, 2026

First seenJul 11, 2026

Weakness typeCWE-290CWE-290

How to fix

Update

praisonai4.6.78 or later

Vendor advisories

github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qj9c-59p6-8cgx

Affected products

Product	Affected versions	Fixed in
praisonaiPyPI	v < 4.6.78	4.6.78

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