Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7
- https://github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f02
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-42
- https://www.vulncheck.com/advisories/praisonai-before-missing-webhook-signature-
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-42
FAQ
What is CVE-2026-61436?
CVE-2026-61436 is a vulnerability with a CVSS score of 8.6 (HIGH). 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...
How severe is CVE-2026-61436?
CVE-2026-61436 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-61436?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.