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OpenAdvisories
High · 7.3 CVE-2026-61428 EUVD-2026-43177GHSA-4mp6-8448-9vgvGHSA-qj9c-59p6-8cgxPYSEC-2026-4259

PraisonAI AgentMail before 4.6.78 Message Injection via Webhook

Published Jul 11, 2026 · Updated Jul 13, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
MervinPraison PraisonAI < 4.6.78 4.6.78

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI praisonai < 4.6.78 4.6.78 GHSA-qj9c-59p6-8cgx

References