What’s Vulnerable › Vulnerabilities

CVE-2026-61428: PraisonAI AgentMail before 4.6.78 Message Injection via Webhook

• Severity: high (CVSS 7.3 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: none known
• Published: 2026-07-11 · updated 2026-10-25
• Weakness: CWE-290

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

• MervinPraison PraisonAI: before 4.6.78 — fixed in 4.6.78

How to fix

Upgrade to a fixed version: MervinPraison PraisonAI 4.6.78. Check the vendor advisory for mitigations.

References

• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qj9c-59p6-8cgx
• https://www.vulncheck.com/advisories/praisonai-agentmail-before-message-injection-via-webhook
• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qj9c-59p6-8cgx

Get alerted when CVE-2026-61428 or the next vulnerability affects your stack