CVE Catalog

CVE-2026-61436

HighCVSS 8.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.29%

21th percentile - higher than 21% of all known CVEs

Summary

A vulnerability in PraisonAI before version 4.6.78 in AgentMail webhook mode fails to verify Svix webhook signatures, allowing unauthenticated attackers to forge message.received events. Attackers can send crafted JSON payloads to the webhook endpoint to invoke configured agents with arbitrary sender addresses and message content.

Risk Assessment

The risk involves an attacker gaining control over agents by impersonating any sender and sending malicious content, potentially leading to communication integrity breaches and social engineering attacks.

Recommendation

Immediately update PraisonAI to version 4.6.78 or later, which includes a fix for Svix webhook signature verification. Additionally, consider implementing extra authentication mechanisms for webhook endpoints.

Other vulnerabilities in PraisonAI

See all
Original NVD description (English source)

PraisonAI before 4.6.78 fails to verify Svix webhook signatures in AgentMail webhook mode, allowing unauthenticated attackers to forge message.received events. Attackers can send crafted JSON payloads to the webhook endpoint to invoke configured agents with arbitrary sender addresses and message content.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS